2026

M. Ahmed, A. Barth, M. Iddrisu, L. M. Whitt, N. Kruse, N. I. Hammer, B. Maji, F. Castellano, T. Szilvási, and E. Papish, “Synthesis of Ni(II) CNC-Pincer Catalysts with Electronic Donor or Acceptor Groups for Visible Light Driven Carbon Dioxide Reduction,” Inorganic Chemistry, submitted (2026).

Q. Zhang, P. N. Samanta, Y. Qi, S. Jha, N. Kruse, G. Ma, J. Emodogo, H. Zhang, R. Thirumalai, P. C. Ray, J,. Leszczynski, X. Gu, K. Wang, D. Patton, N. I. Hammer, and Q. Dai, “Sulfolane-based Solvent Engineering for High-Performance MAPbI3 Perovskite Solar Cells,” ACS Applied Energy Materials, submitted (2026). (NSF OIA-1757220)

N. A. Kruse, M. Saucier, J. H. Delcamp, and N. I. Hammer, “Understanding Violations of Kasha’s Rule in the Heptamethine Indolizine-Cyanine Dye SO₃C₇,” Journal of Molecular Structure 1371, 146507 (2026). DOI: 10.1016/j.molstruc.2026.146507

A. K. Shaik, D. Nugegoda, K. Madison, E. King, P. Mahalingam, C. Curiac, H. Cheema, J. Azoulay, G. Hill, J. H. Delcamp, and N. I. Hammer, “Evaluation of a conjugated polymer as a photosensitizer for energy conversion applications,” Journal of Polymer Engineering (2026). DOI: 10.1515/polyeng-2025-0212

G. Singh, C. Smith, D. S. Darlington, N. A. Kruse, E. C. Lambert, P. Vashisth, W. E. Meador, K. Kapusta, R. C. Fortenberry, I Owolabi, A. S. Flynt, J. H. Delcamp, N. I. Hammer, and E. E. L. Tanner, “Bioinspired Room-temperature Ionic liquids and GUMBOS as enHanced emission Tools (BRIGHT) for Organic Near-Infrared Dyes in Aqueous Media,” Cell Reports Physical Science, 7, 103113 (2026). DOI: 10.1016/j.xcrp.2026.103113

W. Silprakob, N, A. Kruse, M. Iddrisu, L. Whitt, T. Szilvási, N. I. Hammer, E. T. Papish, Elizabeth, “Synthesis, Characterization, and Catalytic CO₂ Reduction Reactivity of a Macrocyclic CNC Pincer Ligand Bound to Nickel,” Organometallics, 45, 424-437 (2026). DOI: 10.1021/acs.organomet.5c00391

M. M. Stucky, A. Antony, J. W. Jurss and N. I. Hammer, “Hydrogen and Halogen Bond Interactions with 2,6 Dimethoxypyridine,” Journal of Physical Chemistry A, 130, 1282-1291 (2026). DOI: 10.1021/acs.jpca.5c07709 (Featured on Cover)

2025

A. E. Williams, A. C. Holan, L. A. Surbaugh, A. J. Huckaba, J. H. Delcamp, G. S. Tschumper, N. I. Hammer, “Liquid 1H-1,2,3-Triazole Interpreted as a Continuous, Self-Assembled Hydrogen-Bonded Linear Network,” Journal of Physical Chemistry A, 129, 9195-9203 (2025). DOI: 10.1021/acs.jpca.5c04341 (Featured on Cover) (NSF CHE-1532079 and OIA-1757220)

J. A. Denny, G. M. Lang, S. Autry, V. Dixit, T. L. Woodby, A. McClellan; J. M. Trate, N. I. Hammer, C. E. Webster, and T. K. Hollis, “Air-stable Palladium N-Heterocyclic Carbene based CCC-NHC Pincer Complexes: Synthesis, Characterization, Photophysical and Raman Vibrational Studies, and DFT Studies, Plus Observation of an Abnormal Carbene Pincer,” Journal of Organometallic Chemistry, 1023, 123419 (2025). DOI: 10.1016/j.jorganchem.2024.123419 (NSF EPS-0903787, OIA-1539035, CHE-1532079 and CHE-0955550)

A. Bromley, N. I. Hammer, R. C. Fortenberry, and D. N. Reinemann, “BPS2025 - Elucidating the origins of transient secondary structure in tubulin E-hooks using quantum mechanics,” Biophysical Society, 124, 138A (2025). DOI: 10.1016/j.bpj.2024.11.773

2024

M. A. Saucier, N. A. Kruse, B. E. Seidel, N. I. Hammer, G. S. Tschumper, and J. H. Delcamp, “Phospha-RosIndolizine Dye with Shortwave Infrared (SWIR) Absorption and Emission,” Journal of Organic Chemistry, 89, 9092−9097 (2024). DOI: 10.1021/acs.joc.4c00741 (NSF OIA-1757220)

W. Meador, M. Saucier, M. R. Tucker, N. A. Kruse, A. J. Mobley, C. Brower, S. Parkin, K. Clark, N. I. Hammer, G. S. Tschumper, and J. H. Delcamp, “Extended Shortwave Infrared Absorbing Antiaromatic Fluorenium-Indolizine Chromophores,” Chemical Science, 15, 12349-12360 (2024). DOI: 10.1039/D4SC00733F (NSF OIA-1757220)

R. Kaur, N. A. Kruse, C. Smith, N. I. Hammer, and J. H. Delcamp, “Comparison of Vinyldimethylaniline and Indolizine Donor Groups on Si-Substituted Xanthene Core Shortwave Infrared Fluorophores,” ChemPhotoChem (2024). DOI: 10.1002/cptc.202400023 (NSF OIA-1757220)

S. Y. Manafe, N. Le, E. C. Lambert, C. Curiac, D. Nugegoda, S. Das, L. A. Hunt, F. Qu, L. M. Whitt, I. Fedin, N. I. Hammer, C. E. Webster, J. H. Delcamp, and E. T. Papish, “Sensitized and Self-sensitized Photocatalytic CO₂ Reduction to HCO₂^– and CO under Visible Light with Ni(II) CNC-Pincer Catalysts,” ACS Catalysis, 6589–6602 (2024). DOI: 10.1021/acscatal.3c03787 (NSF OIA-1757220)

Q. Y. Li, E. C. Lambert, N. I. Hammer, and J. H. Delcamp, “Symmetric Dicyanobenzothiadiazole (DCBT) Dyes with a 1.5 eV Excited State Reduction Potential Range,” RSC Advances, 14, 6521-6531 (2024). DOI: 10.1039/D3RA06575H (NSF OIA-1757220)

N. E. Sparks, C. Smith, T. Stahl, D. L. Amarasekara, C. Hamadani, E. Lambert, S. W. Tang, A. Kulkarni, B. M. Derbigny, G. S. Dasanayake, G. Taylor, N. I. Hammer, A. Y. Sokolov, N. C. Fitzkee, E. E. L. Tanner, and D. L. Watkins, “NIR-II emissive donor–acceptor–donor fluorophores for dual fluorescence bioimaging and photothermal therapy applications,” Journal of Materials Chemistry C, 12, 4369-4383 (2024). DOI: 10.1039/D3TC04747D (NSF OIA-1757220)

M. A. Saucier, N. A. Kruse, T. A. Lewis, N. I. Hammer, and J. H. Delcamp, “Switch-On Near Infrared Emission in Albumin Behind Dark Fabric: Toward Application in Forensic Latent Bloodstain Detection,” RSC Advances, 14, 9254-9261 (2024). DOI: 10.1039/D4RA00756E (NSF OIA-1757220)

W. E. Meador, T. Lewis, A. K. Shaik, H. Wijesinghe, K. Hirunika, B. Yang, A. Dass, N. I. Hammer, and J. H. Delcamp, “Molecular Engineering of Stabilized Silicon-Rosindolizine Shortwave Infrared Fluorophores,” The Journal of Organic Chemistry, 89, 2825 (2024). DOI: 10.1021/acs.joc.3c01917 (NSF OIA-1757220)

P. Vashisth, C. L. Smith, D. Amarasekara, G. Dasanayake, G. Singh, C. Chism, C. Hamadani, T. Shaikh, N. Grovich, B. Gamboa, N. Fitzkee, N. I. Hammer, and E. E. Tanner, “Choline carboxylic acid ionic liquid-stabilized anisotropic gold nanoparticles for photothermal therapy,” ACS Applied Nano Materials, (2024). DOI: 10.1021/acsanm.3c04645 (NSF OIA-1757220)

D. Ndaleh, W. E. Meador, C. L. Smith, H. C. Friedman, M. McGuire, J. R. Caram, N. I. Hammer, and J. H. Delcamp, “Near-infrared Emissive Indolizine Squaraine Fluorophores as Strong Molecular Viscosity Sensors,” ChemPhotoChem (2024). DOI: 10.1002/cptc.202300212 (NSF OIA-1757220)

W. E. Meador, E. Y. Lin, I. Lim, H. C. Friedman, D. Ndaleh, A. K. Shaik, N. I. Hammer, B. Yang, J. R. Caram, E. M. Sletten, J. H. Delcamp, “Shortwave Infrared Absorbing and Emitting Silicon-Rosindolizine Fluorophores for in vivo Fluorescence Imaging,” Nature Chemistry (2024). DOI: 10.1038/s41557-024-01464-6 (NSF OIA-1757220)

S. Abate, S. Jha, A. Shaik, G. Ma, J. Nash, N. Pradhan, X. Gu, D. Patton, N. I. Hammer, Q. Dai, “Fabrication of a 1D/3D heterostructure perovskite layers by tetrabutylammonium tetrafluoroborate for high-performance devices,” ACS Advanced Energy Materials, 125, 106984 (2024). DOI: 10.1016/j.orgel.2023.106984 (NSF OIA-1757220)

2023

C. Curiac, E. C. Lambert, L. A. Hunt, M. Roberts, A. LaMore, A. Peddapuram, H. Cheema, N. I. Hammer, and J. H. Delcamp, “Increasing Photoinduced Interfacial Charge Separation Lifetime Through Control of Twist Angle at the Donor Region of Carbazole-Based Dyes,” Journal of Physical Chemistry C, 127, 21474–21486 (2023). DOI: 10.1021/acs.jpcc.3c04735 (NSF OIA-1757220)

T. J. Wolfe, N. A. Kruse, M. M. Radwan, A. S. Wanas, K. N. Sigworth, M. A. ElSohly, and N. I. Hammer, “A study of major cannabinoids via Raman spectroscopy and density functional theory,” Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 303, 123133 (2023). DOI: 10.1016/j.saa.2023.123133 (NSF OIA-1757220)

D. Donovan, A. Mahurin, K. Kapusta, E. Suh, C. Smith, E. Jarrett, C. Chism, W. Meador, J. Delcamp, Y. Zhao, N. I. Hammer, C. Kariyawasam, R. Somarathne, N. Fitzkee, and E. E. Tanner, “Selective Near-Infrared Blood Detection Driven by Ionic Liquid-Dye-Albumin Nanointeractions,” Langmuir, 39, 10806–10819 (2023). DOI: 10.1021/acs.langmuir.3c00727 (NSF OIA-1757220)

N. Sparks, S. Vijayan, J. Roy, A. Dorris, E. C. Lambert, D. Karunathilaka, N. I. Hammer, J. Leszczynski, D. L. Watkins, “Synthesis and Characterization of Novel Thienothiadiazole-based D-π-A-π-D Fluorophores as Potential NIR Imaging Agents,” ACS Omega, 8, 24513–24523 (2023). DOI: 10.1021/acsomega.3c02602 (NSF OIA-1757220)

L. A. Hunt, S. Da, D. Nugegoda, R. Lamb, M. Figgins, E. Lambert, F. Qu, C. E. Webster, N. I. Hammer, J. H. Delcamp, and E. T. Papish, “Ruthenium (II) Complexes of CNC Pincers and Bipyridine in the Photocatalytic CO₂ Reduction Reaction to CO using Visible Light: Catalysis, Kinetics, and Computational Insights,” ACS Catalysis, 13, 5986–5999 (2023). DOI: 10.1021/acscatal.2c05459 (NSF OIA-1757220)

C. S. L. Rathnamalala, S. Hernandez, M. Y. Lucero, C. B. Swartchick, A. K. Shaik, N. I. Hammer, S. Gwaltney, J. Chan, and C. N. Scott, “Xanthene-based nitric oxide-responsive nanosensor for photoacoustic imaging in the SWIR window,” Angewandte Chemie International Edition, 62, e2022148 (2023). DOI: 10.1002/anie.202214855 (NSF OIA-1757220)

M. A. Saucier, C. Smith, N. A. Kruse, N. I. Hammer, and J. H. Delcamp, “Acid-Triggered Switchable Near-Infrared/Shortwave Infrared Absorption and Emission of Indolizine-BODIPY Dyes,” Molecules, 28, 1287 (2023). DOI: 10.3390/molecules28031287 (NSF OIA-1757220)

P. Prasad, L. A. Hunt, A. E. Pall, M. Ranasinghe, A. E. Williams, T. L. Stemmler, B. Demeler, N. I. Hammer, and S. Chakraborty, “Photocatalytic Hydrogen Production by a De Novo Designed Metalloprotein that Undergoes Ni-Mediated Oligomerization Shift,” Chemistry – A European Journal, e202202902 (2023). DOI: 10.1002/chem.202202902 (NSF OIA-1757220)

A. L. Dorris, J. Watson, J. J. Mosely, E. C. Lambert, G. S. Tschumper, J. H. Delcamp, and N. I. Hammer, “Effects of Proaromaticity on Excited-State Lifetimes and Charge Separation in Near-Infrared Sensitizer Dyes in Solution and on TiO₂,” Journal of Physical Chemistry C, 127, 649−659 (2023). DOI: 10.1021/acs.jpcc.2c06906 (Featured on Cover) (NSF OIA-1757220, CHE-1954922)

2022

Q. Y. Li, L. A. Hunt, K. H. Wijesinghe, C. Curiac, A. Williams, A. Dass, N. I. Hammer, and J. H. Delcamp, “Dicyanobenzothiadiazole (DCBT) Organic Dye as a Visible Light Absorbing Strong Photoinduced Oxidant with a 16 Microsecond Long-Lived Excited State,” Advanced Energy Materials (2022). DOI: 10.1002/aenm.202203102 (NSF CHE-1954922)

I. R. Nichols, C. M. Hamadani, H. Ahmad, A. E. Williams, N. I. Hammer, S. Kundu, and E. E. L. Tanner, “The Impact of Water on Ionic Liquid-Facilitated Transdermal Transport,” Advanced Therapeutics (2022). DOI: 10.1002/adtp.202200096 (NSF OIA-1757220)

Y. Qi, M. Almtiri, H. Giri, S. Jha, G. Ma, A. K. Shaik, Q. Zhang, N. Pradhan, X. Gu, N. I. Hammer, D. Patton, C. Scott, and Q. Dai, “Evaluation of the Passivation Effects of PEDOT:PSS on Inverted Perovskite Solar Cells,” Advanced Energy Materials (2022). DOI: 10.1002/aenm.202202713 (NSF OIA-1757220)

D. Sengottuvelu, A. K. Shaik, S. Mishra, H. Ahmad, M. Abbaszadeh, N. Hammer, and S. Kundu, “Multicolor Nitrogen-doped Carbon Quantum Dots for Environment-dependent Emission Tuning,” ACS Omega, 7, 27742 (2022). DOI: 10.1021/acsomega.2c03912 (NSF OIA-1757220)

L. E. McNamara, E. C. Lambert, D. N. Reinemann, T. K. Hollis, H. U. Vall, G. S. Tschumper, and N. I. Hammer, “Raman Spectroscopic, Computational, and X-ray crystallographic investigation of Intermolecular Interactions in Trimethylamine N-oxide (TMAO) and TMAO-d9,” Chemical Physics Letters, 805, 139928 (2022). DOI: 10.1016/j.cplett.2022.139928 (NSF OIA-1757220)

E. C. Lambert, C. L. Smith, R. N. Compton, and N. I. Hammer, “Guest-Host Raman Under liquid Nitrogen Spectroscopy for the acquisition of improved vibrational spectra of solids,” ChemPhysChem (2022). DOI: 10.1002/cphc.202200309 (Featured on Cover) (NSF OIA-1757220)

S. Chatterjee, A. K. Shaik, K. H. Wijesinghe, D. Ndaleh, A. Dass, N. I. Hammer, J. Delcamp, “Design and Synthesis of RhodIndolizine Dyes with Improved Stability and Shortwave Infrared Emission up to 1250 nm,” Journal of Organic Chemistry (2022). DOI: 10.1021/acs.joc.2c00678 (NSF OIA-1757220)

W. E. Meador, K. Kapusta, I. Owolabi, S. A. Autry, J. Saloni, W. Kolodziejczyk, N. I. Hammer, A. S. Flynt, G. A. Hill, and J. H. Delcamp, “Ultra Bright NIR Sulfonate-Indolizine Cyanine- and SquaraineAlbumin Chaperones: Record Quantum Yields and Applications,” ChemPhotoChem (2022). DOI: 10.1002/cptc.202200127 (NSF OIA-1757220)

N. Dinesh, S. Bhattacharya, L. A. Hunt, S. Schwartz, N. I. Hammer, J. Jurss, J. Delcamp, “Designing Self-Assembled Dye-Redox Shuttle Systems via Interfacial π-Stacking in Dye-Sensitized Solar Cells for Enhanced Low Light Power Conversion,” Energy & Fuels (2022). DOI: 10.1021/acs.energyfuels.2c00633 (NSF OIA-1757220)

D. Karunathilaka, R. M. G. Rajapakse, A. E. Hardin, T. M. Sexton, N. E. Sparks, J. J. Mosely, A. L. Rheingold, N. I. Hammer, G. S. Tschumper, and D. L. Watkins, “Correlation of Solid-State Order to Optoelectronic Behavior in Heterocyclic Oligomers,” CrystEngComm, 24, 4564-4572 (2022). DOI: 10.1039/D2CE00560C (NSF OIA-1757220)

E. C. Lambert, A, E. Williams, R. C. Fortenberry, and N. I. Hammer, “Probing halogen bonding interactions between heptafluoro-2-iodopropane and three azabenzenes with Raman spectroscopy and density functional theory,” PCCP, 24, 11713-11720 (2022). DOI: 10.1039/D2CP00463A (NSF OIA-1757220)

A. Dorris, N. E. Sparks, S. M. Vijayan, I. Chandrasiri, M. Farid Zia, N. I. Hammer, A. Flynt, and D. L. Watkins, “Effects of Nanoaggregation on Isoindigo-based Fluorophores for Near-infrared Bioimaging Applications,” Molecular Systems Design & Engineering (2022). DOI: 10.1039/D2ME00014H (NSF OIA-1757220)

E. C. Lambert, B. W. Stratton, and N. I. Hammer, “Raman Spectroscopic and Quantum Chemical Investigation of the Pyridine-borane Complex and the Effects of Dative Bonding on the Normal Modes of Pyridine,” ACS Omega (2022). DOI: 10.1021/acsomega.2c00636 (NSF OIA-1757220)

R. N. Compton, N. I. Hammer, E. C. Lambert, and J. S. Hager, Raman Spectroscopy Under Liquid Nitrogen (RUN), Springer Series on Atomic, Optical and Plasma Physics (2022). ISBN: 978-3-030-99394-8

D. Nugegoda, L. Hunt, A. Devdass, H. Cheema, R. Fortenberry, J. Jurss, N. Hammer, and J. Delcamp, “Lewis Acid-Lewis Base Interactions Promote Fast Interfacial Electron Transfers with a Pyridine-Based Donor Dye in Dye-Sensitized Solar Cells,” ACS Applied Energy Materials, 5, 1516–1527 (2022). DOI: 10.1021/acsaem.1c02912 (NSF OIA-1757220 and CHE-1954922)

I. Chandrasiri, M. L. Yaddehige, B. Li, Y. Sun, W. Meador, A. Dorris, M. Zia, N. Hammer, A. Flynt, E. Davis, J. Delcamp, A. Lippert, and D. Watkins, “Cross-linking Poly(caprolactone)–Polyamidoamine Linear Dendritic Block Copolymers for Theranostic Nanomedicine,” ACS Applied Polymer Materials, 4, 2972–2986 (2022). DOI: 10.1021/acsapm.1c01131 (NSF OIA-1757220)

2021

L. A. Hunt, R. Rodrigues, K. Foell, D. Nugegoda, H. Cheema, N. I. Hammer, and J. H. Delcamp, “Preferential Direction of Electron Transfers at a Dye-Metal Oxide Interface with an Insulating Fluorinated Self-Assembled Monolayer,” Journal of Physical Chemistry C, 125, 25410–25421 (2021). DOI: 10.1021/acs.jpcc.1c07981 (NSF OIA-1539035 and CHE-1954922)

D. Ndaleh, C. Smith, M L. Yaddehige, A. K. Shaik, D. L. Watkin, N. I. Hammer, and J. H. Delcamp, “Shortwave Infrared Absorptive and Emissive Pentamethine-Bridged Indolizine Cyanine Dyes,” Journal of Organic Chemistry, 86, 15376–15386 (2021). DOI: 10.1021/acs.joc.1c01908 (NSF OIA-1757220)

A. E. Williams, N. I. Hammer, and G. S. Tschumper, “Relative Energetics of CH₃CH₂O, CH₃CHOH, and CH₂CH₂OH Radical Products from Ethanol Dehydrogenation,” The Journal of Chemical Physics, 155, 114306 (2021). DOI: 10.1063/5.0062809

S. Chatterjee, W. E. Meador, C. Smith, I. Chandrasiri, F. Zia, J. Nguyen, A. Dorris, A. Flynt, D. L. Watkins, N. I. Hammer, and J. H. Delcamp, “SWIR Emissive RosIndolizine Dyes and Nanoencapsulated in Water Soluble Dendrimers,” RSC Advances, 11, 27832-27836 (2021). DOI: 10.1039/d1ra05479a (NSF OIA-1757220)

L. A. Hunt, C. Curiac, M. A. Sabuj, Q. Li,A. Baumann, H. Cheema, Y. Zhang, N. Rai, N. I. Hammer, and J. H. Delcamp, “Probing Interfacial Halogen Bonding Effects with Halogenated Organic Dyes and a Lewis Base Decorated Transition Metal-Based Redox Shuttles at a Metal Oxide Interface in Dye-Sensitized Solar Cells,” Journal of Physical Chemistry C, 125, 17647-17659 (2021). DOI: 10.1021/acs.jpcc.1c05051 (NSF OIA-1757220)

T. Ranathunge, M. L. Yaddehige, J. H. Varma, C. Smith, J. Nguyen, I. Owolabi, W. Kolodziejczyk, N. I. Hammer, G. Hill, A. S. Flynt, and D. L. Watkins, “Heteroacene-based amphiphile as a molecular scaffold for bioimaging probes,” Frontiers in Chemistry, 729125 (2021). DOI: 10.3389/fchem.2021.729125 (NSF OIA-1757220)

C. Curiac, R. Rodrigues, J. Watson, L. A. Hunt, A. Devdass, J. W. Jurss, N. I. Hammer, R. Fortenberry, and J. H. Delcamp, “Iron Redox Shuttles with Wide Optical Gap Dyes for High Voltage Dye-Sensitized Solar Cells,” ChemSusChem, 14, 3084-3096 (2021). DOI: 10.1002/cssc.202100884 (NSF OIA-1757220)

A. E. Wiliams, N. I. Hammer, D. Reinemann, and R. Fortenberry, “Tracking the amide I and αCOO− Terminal ν(C=O) Raman Bands in a Family of L-Glutamic Acid Containing Peptide Fragments: A Raman and DFT Study,” Molecules, 26, 4790 (2021).DOI: 10.3390/molecules26164790

S. M. Parambath, A. E Williams, L .A. Hunt, N. I Hammer, and S. Chakraborty, “A De Novo Designed Artificial Metallopeptide Hydrogenase: Insights into Photochemical Processes and the Role of Protonated Cys,” ChemSusChem, 14, 2237-2246 (2021). DOI: 10.1002/cssc.202100122

B. Sajjadi, D. L. Mattern, N. I. Hammer, R. Shrestha, V. Raman, W.-Y. Chen, and Austin L. Dorris, “Double-Layer Magnetized/Functionalized Biochar Composite: A Microporous Structure for Environmental Applications,” Journal of Water Process Engineering, 39, 101677 (2021). DOI: 10.1016/j.jwpe.2020.101677

H. Shirley, T. M. Sexton, N. P. Liyanage, M. A. Perkins, S. A. Autry, L. E. McNamara, N. I. Hammer, S. Parkin, G. S. Tschumper, and J. H. Delcamp, “Probing the Effects of Electron Deficient Aryl Substituents and a π-System Extended NHC Ring on the Photocatalytic CO₂ Reduction Reaction with Re-pyNHC-aryl Complexes,” ChemPhotoChem, 5, 353-361 (2021). DOI: 10.1002/cptc.202000296 (NSF OIA-1539035)

G. A. Verville, H. K. Byrd, A. Kamischke, S. A. Smith, D. H. Magers, N. I. Hammer, “Raman Spectroscopic and Quantum Chemical Investigation of the Effects of Tri-methylamine N-oxide (TMAO) on Hydrated Guanidinium and Hydrogen-Bonded Water Networks,” Journal of Raman Spectroscopy, 52, 788-795 (2021). DOI: 10.1002/jrs.6061

A. E. Williams, J. E. Davis, J. E. Reynolds, R. C. Fortenberry, N. I. Hammer, and D. N. Reinemann, “Determination of Vibrational Band Positions in Peptides,” Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 244, 118895 (2021). DOI: 10.1016/j.saa.2020.118895 (NSF OIA-1757220)

S. Dawood, A. Dorris, N. I. Hammer, and H. Rathnayake, “Synthesis, Characterization, and Photophysics of Self-Assembled Mn(II)-MOF with Naphthalene Chromophore,” The Journal of Physical Chemistry C, 125, 792-802 (2021). DOI: 10.1021/acs.jpcc.0c09600

2020

S. Vijayan, N. Sparks, J. Roy, C. Smith, C. Tate, N. I. Hammer, J. Leszczynski, and D. Watkins, “Evaluating Donor Effects in Isoindigo Based Small Molecular Fluorophores,” The Journal of Physical Chemistry A, 124, 10777–10786 (2020). DOI: 10.1021/acs.jpca.0c07796 (NSF OIA-1757220)

I. Chandrasiri, D. Abebe M. L. Yaddehige, J. Williams, M. Zia, A. L. Dorris, A. Barker, B. Simms, A. Parker, N. Le, J. Gayton, N. I. Hammer, A. Flynt, J. H. Delcamp, and D. L. Watkins, “Self-Assembling PCL-PAMAM Linear Dendritic Block Copolymers (LDBCs) for Bioimaging and Phototherapeutic Applications,” ACS Applied Bio Materials, 3, 5664–5677 (2020). DOI: 10.1021/acsabm.0c00432 (Featured on Cover) (OIA-1757220)

R. Chatterjee, B. Sajjadi, W. Y. Chen, D. L Mattern, N. I. Hammer, V. Raman, and A. Dorris, “Impact of Biomass Sources on Acoustic Based Chemical Functionalization of Biochars for Improved CO₂ Adsorption,” Energy & Fuels, 34, 8608–8627 (2020). DOI: 10.1021/acs.energyfuels.0c01054

R. Chatterjee, B. Sajjadi, W. Y. Chen, D. L Mattern, N. I. Hammer, V. Raman, and A. Dorris, “Effect of Pyrolysis Temperature on Physicochemical Properties and Acoustic-Based Amination of Biochar for Efficient CO₂ Adsorption,” Frontiers in Energy Research, 8, 85 (2020). DOI: 10.3389/fenrg.2020.00085

H. Shirley, T. M. Sexton, N. P. Liyanage, C. Z. Palmer, L. E. McNamara, N. I. Hammer, G. S. Tschumper, and J. H. Delcamp, “Effect of “X” Ligands on the Photocatalytic Reduction of CO₂ to CO with Re(pyridylNHC-CF₃)(CO)_3X Complexes,” European Journal of Inorganic Chemistry, 2020, 1844–1851 (2020). DOI: 10.1002/ejic.202000283 (Featured on Cover) (NSF OIA-1539035)

W. E. Meador, S. A. Autry, R. Bessetti, J. Gayton, A. Flynt, N. I. Hammer, and J. H. Delcamp, “Water Soluble NIR Absorbing and Emitting Indolizine Cyanine and Indolizine Squaraine Dyes for Biological Imaging,” Journal of Organic Chemistry, 85, 4089-4095 (2020). DOI: 10.1021/acs.joc.9b03108 (Featured on Cover) (NSF OIA-1757220)

B. Sajjadi, W.-Y. Chen, D. L. Mattern, N. I. Hammer, A. Dorris, “Low-Temperature Acoustic-Based Activation of Biochar for Enhanced Removal of Heavy Metals,” Journal of Water Process Engineering, 34, 101166 (2020). DOI: 10.1016/j.jwpe.2020.101166

J. Gayton, S. A. Autry, W. Kolodziejczyk, G. Hill, N. I. Hammer, and J. H. Delcamp, “Phosphate and Water Sensing with a Zinc Dipicolylamine-Based Charge Transfer Dye,” ChemistrySelect, 5, 1945-1949 (2020). DOI: 10.1002/slct.202000198 (NSF OIA-1539035)

2019

R. R. Rodrigues, A. Peddapuram, A. L. Dorris, N. I. Hammer, and J. H. Delcamp, “Thienopyrroledione-Based Photosensitizers as Strong Photoinduced Oxidants: Oxidation of Fe(bpy)₃ in a >1.3 V Dye-Sensitized Solar Cell,” ACS Applied Energy Materials, 2, 5547-5556 (2019). DOI: 10.1021/acsaem.9b00730 (NSF OIA-1757220)

P. R. Fontenot, B. Shan, B. Wang, S. Simpson, G. Ragunathan, A. F. Greene, A. Obanda, L. A. Hunt, N. I. Hammer, E. C. Webster, J. T. Mague, R. H. Schmehl, and J. P. Donahue, “Photocatalytic H₂-Evolution by Homogeneous Molybdenum Sulfide Clusters Supported by Dithiocarbamate Ligands,” Inorganic Chemistry, 58, 16458-16474 (2019). DOI: 10.1021/acs.inorgchem.9b02252

A. E. Hardin, T. L. Ellington, S. T. Nguyen, A. L. Rheingold, G. S. Tschumper, D. L. Watkins, and N. I. Hammer, “A Raman Spectroscopic and Computational Study of New Aromatic Pyrimidine-Based Halogen Bond Acceptors,” Inorganics, 7, 119 (2019). DOI: 10.3390/inorganics7100119 (NSF OIA-1539035)

C. Rathnamalala, J. Gayton, A. L. Dorris, S. A. Autry, W. Meador, N. I. Hammer, J. H. Delcamp, and C. Scott, “Donor-Acceptor-Donor NIR II Emissive Rhodindolizine Dye Synthesized by C-H Bond Functionalization,” The Journal of Organic Chemistry, 84, 13186-13193 (2019). DOI: acs.joc.9b01860 (NSF OIA-1757220)

S. Parajuli, A. L. Dorris, C. Middleton, A. Rodriguez, M. O’ Haver, N. I. Hammer, and E. Ureña-Benavides, “Surface and Interfacial Interactions in Dodecane/Brine Pickering Emulsions Stabilized by Combination of Cellulose Nanocrystals and Emulsifiers,” Langmuir, 35, 12061-12070 (2019). DOI: 10.1021/acs.langmuir.9b01218

A. E. Steen, S. T. Nguyen, T. L. Ellington, S. Balasubramaniam, I. Chandrasiri, J. H. Delcamp, G. S. Tschumper, N. I. Hammer, and D. L. Watkins, “Characterization of Furan- and Thiophene-containing Bispyridyl Oligomers via Spectroscopic, Electrochemical, and TD-DFT Methods,” Journal of Physical Chemistry C, 123, 15176−15185 (2019). DOI: 10.1021/acs.jpcc.9b01510

H. Cheema, P. Brogdon, E. K. Loya, L. E. McNamara, C. A. Carpenter, N. I. Hammer, S. Mathew, C. Risko, and J. H. Delcamp, “A NIR Absorbing Indolizine-Porphyrin Push-Pull Dye for Dye-Sensitized Solar Cells,” ACS Applied Materials & Interfaces, 11, 16474-16489 (2019). DOI: 10.1021/acsami.8b21414

R. M. Rajapakse, N. H. Attanayake, D. Karunathilaka, A. E. Steen, N. I. Hammer, D. R. Strongin, and D. L. Watkins, “Advances in Electro-copolymerization of NIR Emitting and Electronically Conducting Block Copolymers,” Journal of Materials Chemistry C, 7, 3168-3172 (2019). DOI: 10.1039/C8TC06331A.

S. Autry, J. N. Gayton, W. Meador, S. Parkin, G. Hill, N. I. Hammer, and J. H. Delcamp, “Indolizine-Cyanine Dyes: Near Infrared Emissive Cyanine Dyes with Increased Stokes Shifts,” Journal of Organic Chemistry, 84, 687-697 (2019). DOI: 10.1021/acs.joc.8b02521

R. Chatterjee, B. Sajjadi, W.-Y.Chen, D. L. Mattern, N. O. Egiebor, N. I. Hammer, and V. Raman, “Low Frequency Ultrasound Enhanced Dual Amination of Biochar: A Nitrogen-Enriched Sorbent for CO₂ Capture,” Energy & Fuels, 33, 2366–2380 (2019). DOI: 10.1021/acs.energyfuels.8b03583

Y. Wusimanjiang, J. Yadav, V. Arau, A. E. Steen, N. I. Hammer, and S. Pan “Blue Electrogenerated Chemiluminescence from Halide Perovskite Nanocrystals,” Journal of Analysis and Testing (2019). DOI: 10.1007/s41664-018-0082-4

B. Sajjadi, J. W. Broome, W.-Y. Chen, D. Mattern, N. O. Egiebor, N. Hammer, C. L. Smith, “Urea Functionalization of Ultrasound-Treated Biochar: A Feasible Strategy for Enhancing Heavy Metal Adsorption Capacity,” Ultrasonics Sonochemistry, 51, 20-30 (2019). DOI: 10.1016/j.ultsonch.2018.09.015

2018

S. Autry, J. N. Gayton, R. C. Fortenberry, N. I. Hammer, and J. H. Delcamp, “Counter Anion Effect on the Photophysical Properties of Emissive Indolizine-Cyanine Dyes in Solution and Solid State,” Molecules, 23, 3051 (2018). DOI: 10.3390/molecules23123051 (NSF OIA-1757220)

S. J. Cassidy, I. Brettell-Adams, L. E. McNamara, M. F. Smith, M. Bautista, H. Cao, M. Vasiliu, D. L. Gerlach, F. Qu, N. I. Hammer, D. A. Dixon, and P. A. Rupar, “Boranes with Ultra High Stokes Shifts Fluorescence,” Organometallics, 37, 3732–3741 (2018). DOI: 10.1021/acs.organomet.8b00460

S. N. Johnson, C. R. Hutchison, C. Williams, C. L. Hussey, G. S. Tschumper and N. I. Hammer, “Intermolecular interactions and vibrational perturbations within 1-ethyl-3-methlimidazolium thiocyanate / water mixtures,” Journal of Physical Chemistry C, 122, 27673 (2018). (Featured on Cover) DOI: 10.1021/acs.jpcc.8b07114

S. G. Zetterholm, G. A. Verville, L. Boutwell, C. Boland, J. C. Prather, J. Bethea, J. Cauley, K. Warren, S. A. Smith, D. H. Magers, N. I. Hammer, “Noncovalent Interactions between Tri-methylamine N-oxide (TMAO), Urea, and Water,” Journal of Physical Chemistry B, 122, 8805 (2018). (Featured on Cover) DOI: 10.1021/acs.jpcb.8b04388

A. Peddapuram, H. Cheema, L. E. McNamara, Y. Zhang, N. I. Hammer, and J. H. Delcamp, “Quinoxaline-based Dual Donor, Dual Acceptor Organic Dyes for Dye-Sensitized Solar Cells,” Applied Sciences, 8, 1421 (2018). DOI: 10.3390/app8091421

A. Baumann, H. Cheema, A. Sabuj, L. E. McNamara, A. Peddapuram, Y. Zhang, S. T. Nguyen, D. L. Watkins, N. I. Hammer, N. Rai and J. H. Delcamp, “Iodine Binding with Thiophene and Furan Based Dyes for DSCs,” Physical Chemistry Chemical Physics, 20, 17859 (2018). DOI: 10.1039/c8cp03065k

A. O. Weldeab, A. Steen, D. J. Starkenburg, J. S. D. Williams, J. Xue, N. I. Hammer, R. K. Castellano, and D. L. Watkins, “Tuning the Structural and Spectroscopic Properties of Donor-Acceptor-Donor Oligomers via Mutual X-Bonding, H-Bonding, and π-π Interactions,” Journal of Materials Chemistry C, 6, 11992-12000 (2018). DOI: 10.1039/C8TC00074C

N. I. Hammer and G. S. Tschumper, “Importance of a Truly Cohesive Theme in a REU Program,” in Best Practices for Chemistry REU Programs, edited by Mark Griep and Linette Watkins, ACS Books, 2018. DOI: 10.1021/bk-2018-1295.ch011

P. S. Shinde, P. Fontenot, J. P. Donahue, J. L. Waters, P. Kung, L. E. McNamara, N. I. Hammer, A. Gupta, and S. Pan, “Rapid Screening of Photoanode Materials using SPECM Technique and Formation of Z-scheme Solar Water Splitting System by Coupling p- and n-type Heterojunction Photoelectrodes,” ACS Applied Energy Materials, 1, 12283-2294 (2018). DOI: 10.1021/acsaem.8b00381

P. S. Shinde, P. Fontenot, J. P. Donahue, J. L. Waters, P. Kung, L. E. McNamara, N. I. Hammer, A. Gupta, and S. Pan, “Synthesis and Thin Film Coating of MoS₂ from [Mo₃S₇(S₂CNEt₂)₃]I for Enhanced Photoelectrochemical Performance and Stability of Cu₂O Photocathode Toward Efficient Solar Water Splitting,” Journal of Materials Chemistry A, 6, 9569-9582 (2018). DOI: 10.1039/C8TA01771A

A. J. Huckaba, H. Shirley, R. W. Lamb, S. Guertin, S. Autry, H. Cheema, K. Talukdar, T. Jones, J. W. Jurss, A. Dass, N. I. Hammer, R. H. Schmehl, C. E. Webster, J. H. Delcamp, “A Mononuclear Tungsten Photocatalyst for H₂ Production,” ACS Catalysis, 8, 4838 (2018). DOI: 10.1021/acscatal.7b04242

S. Nguyen, T. Ellington, K. E. Allen, J. Gorden, A. Rheingold, G. S. Tschumper, N. I. Hammer, and D. L. Watkins, “Systematic Experimental and Computational Studies of Substitution and Hybridization in Solid-State Halogen Bonded Assemblies,” ACS Crystal Growth and Design, 18, 3244-3254 (2018). DOI: 10.1021/acs.cgd.8b00398.

Y. Zhang, H. Cheema, L. McNamara, L. A. Hunt, N. I. Hammer, J. H. Delcamp, “Ullazine Donor-Pi bridge-Acceptor Organic Dyes for DSCs,” Chemistry – A European Journal, 24, 5936 (2018). DOI: 10.1002/chem.201800030

R. Chatterjee, B. Sajjadi, D. L. Mattern, W.-Y. Chen, T. Zubatiuk, D. Leszczynska, J. Leszczynski, N. O. Egiebor, N. Hammer, “Ultrasound Cavitation Intensified Amine Functionalization: A Feasible Strategy for Enhancing CO₂ Capture Capacity of Biochar,” Fuel, 225, 287 (2018). DOI: 10.1016/j.fuel.2018.03.145

C. A. Carpenter, P. Brogdon, L .E. McNamara, G. S. Tschumper, N. I. Hammer, and J. H. Delcamp, “A Robust Pyridyl-NHC Ligated Rhenium Photocatalyst for CO₂ Reduction in the Presence of Water and Oxygen,” Inorganics, 6, 22 (2018). DOI:10.3390/inorganics6010022

2017

H. Cheema, A. Peddapuram, R. E. Adams, L. McNamara, L. Hunt, N. Le, D. L. Watkins, N. I. Hammer, R. H. Schmehl, and J. H. Delcamp, “Molecular Engineering of NIR Absorbing Thienopyrazine Double Donor Double Acceptor Organic Dyes for DSCs,” The Journal of Organic Chemistry, 82, 12038–12049 (2017). DOI: 10.1021/acs.joc.7b01750

L. E. McNamara, T. A. Rill, A. J. Huckaba, V. Ganeshraj, J. Gayton, R. A. Nelson, E. A. Sharpe, A. Dass, N. I. Hammer and J. H. Delcamp, “Indolizine-Squaraines: NIR Fluorescent Materials with Molecular Engineered Stokes Shifts,” Chemistry - A European Journal, 23, 12494 (2017). DOI: 10.1002/chem.201702209

K. M. Dreux, L. E. McNamara, J. T. Kelly, A. M. Wright, N. I. Hammer, and G. S. Tschumper, “Probing dative and dihydrogen bonding in ammonia borane with electronic structure computations and Raman under nitrogen spectroscopy,” Journal of Physical Chemistry A, 121, 5884 (2017). (Featured on Cover) DOI: 10.1021/acs.jpca.7b03509

J. D. Cope, J. A. Denny, R. W. Lamb, L. E. McNamara, N. I. Hammer, C. E. Webster, and T. K. Hollis, “Synthesis, Characterization, Photophysics and a Ligand Rearrangement of CCC-NHC Pincer Nickel Complexes: Colors, Polymorphs Emission and Raman Spectra,” Journal of Organometallic Chemistry, 845, 258 (2017). DOI: 10.1016/j.jorganchem.2017.05.046

Y. Zhang, S. A. Autry, L. E. McNamara, S. T. Nguyen, N. Le, P. Brogdon, D. L. Watkins, N. I. Hammer, and J. H. Delcamp, “Near-Infrared Fluorescent Thienothiadiazole Dyes with Large Stokes Shifts and High Photostability,” Journal of Organic Chemistry, 82, 5597-5606 (2017). DOI: 10.1021/acs.joc.7b00422

T. L. Ellington, P. L. Reves, B. L. Simms, J. L. Wilson, D. L. Watkins, G. S. Tschumper, and N. I. Hammer, “Quantifying the effects of halogen bonding by haloaromatic donors on the acceptor pyrimidine,” ChemPhysChem, 18, 1267–1273 (2017). (Featured on Cover) DOI: 10.1002/cphc.201700114

S. C. Sutton, W. E. Cleland, Jr., N. I. Hammer, “Introducing Students to a Synthetic and Spectroscopic Study of the Free Radical Chlorine Dioxide,” The Journal of Chemical Education, 94, 515–520 (2017). DOI: 10.1021/acs.jchemed.6b00599

K. M. Williams, M. Gruner, J. Gensheimer, A. Wright, M. Blair, S. A. Autry, and N. I. Hammer, “Partial displacement of a triamine ligand from a platinum(II) complex after reaction with N-acetylmethionine,” Inorganica Chimica Acta, 458, 163–170 (2017). DOI: 10.1016/j.ica.2017.01.010

N. N. Sreeramulu, L. McNamara, N. I. Hammer, and H. Rathnayake, “A versatile synthesis to novel binary reactive groups functionalized silsesquioxane microparticles,” Science Advances Today, 3, 25266 (2017).

J. Wang, J. Waters, P. Kung, S. Kim, J. T. Kelly, L. E. McNamara, N. I. Hammer, A. Gupta, and S. Pan, “A Facile Electrochemical Reduction Method for Improving Photocatalytic Performance of α-Fe₂O₃ Photoanode for Solar Water Splitting,” ACS Applied Materials and Interfaces, 9, 381-390 (2017). DOI: 10.1021/acsami.6b11057

2016

A. J. Huckaba, A. Yella, L. E. McNamara, A. E. Steen, J. S. Murphy, C. A. Carpenter, G. D. Puneky, N. I. Hammer, M. K. Nazeeruddin, M. Grätzel, and J. H. Delcamp, “Molecular Design Principles of Near-Infrared Absorbing and Emitting Indolizine Dyes,” Chemistry - A European Journal, 22, 15536-15542 (2016). DOI: 10.1002/chem.201603165

J. T. Kelly, A. K. McClellan, L. V. Joe, A. M. Wright, L. T. Lloyd, G. S. Tschumper, and N. I. Hammer, “Competition between Hydrophilic and Argyrophilic Interactions in Surface Enhanced Raman Spectroscopy (SERS),” ChemPhysChem, 17, 2782-2786 (2016). (Featured on Cover) DOI: 10.1002/cphc.201600678

S. Ananthakrishnan, J. Strain, N. N. Sreeramulu, A. Mitul, L. E. McNamara, A. Iefanova, N. I. Hammer, Q. Qiao, and H. Rathnayake, “A Novel Donor-Donor Polymeric Dyad of P3HT-block-Oligo(anthracene-9,10-diyl): Synthesis, Solid-State Packing, and Electronic Properties,” Journal of Polymer Science, Part A: Polymer Chemistry, 54, 3032-3045 (2016). DOI: 10.1002/pola.28189

P. Brogdon, L. E. McNamara, A. Peddapuram, N. I. Hammer, and J. H. Delcamp, “ Toward Tightly Bound Carboxylic Acid-Based Organic Dyes for DSCs: Relative TiO₂ Binding Strengths of Benzoic Acid, Cyanoacrylic Acid, and Conjugated Double Carboxylic Acid Anchoring Dyes,” Synthetic Metals, 222, 66-75 (2016). DOI: 10.1016/j.synthmet.2016.03.031

J. Lu, K. Cuellar, N. I. Hammer, S. Jo, A. Gryczke, K. Kolter, N. Langley, M. A. Repka, “Preparation and Solid-state Characterization of Felodipine-Soluplus® Amorphous Solid Dispersions,” Drug Development and Industrial Pharmacy, 42, 485–496 (2016). DOI: 10.3109/03639045.2015.1104347

L. E. McNamara, N. Liyanage, A. Peddapuram, J. S. Murphy, J. H. Delcamp, and N. I. Hammer, “Donor-Acceptor-Donor Thienopyrazines via Pd-Catalyzed C-H Activation as NIR Fluorescent Materials,” Journal of Organic Chemistry, 81, 32–42 (2016). DOI: 10.1021/acs.joc.5b01958

J. T. Kelly, Y. Wang, X. Zhang, S. Lyapustina, M. M. Nilles, S. Xu, J. D. Graham, T. S. Tschumper, K. H. Bowen, and N. I. Hammer, “The Onset of Electron-Induced Proton-Transfer in Hydrated Azabenzene Cluster Anions,” Physical Chemistry Chemical Physics, 18, 704-712 (2016). (Featured on Cover) DOI: 10.1039/C5CP02746B

N. I. Hammer, S. Sutton, J. Delcamp, and J. D. Graham,   "Photocatalytic Water Splitting and Carbon Dioxide Reduction," Handbook of Climate Change Mitigation and Adaptation, Springer, 2nd Edition, Wei-Yin Chen, Toshio Suzuki, Maximilian Lackner, editors, ISBN: 978-3-319-14408-5.

2015

J. T. Kelly, J. A. Maner, and N. I. Hammer, “Recent Advancements in Chemical Physics,” Journal of Physical Chemistry A, 119, 12909–12910 (2015). DOI: 10.1021/acs.jpca.5b12096

A. F. DeBlase, C. Wolke, G. H. Weddle, K. Archer, K. Jordan, J. T. Kelly, G. S. Tschumper, N. I. Hammer, and M. A. Johnson, “Water network-mediated, electron-induced proton transfer in anionic [C₅H₅N·(H₂O)_n]¯ clusters,” The Journal of Chemical Physics, 143, 144305 (2015). DOI: 10.1063/1.4931928

J. Wilson, J. S. D. Williams, C. Petkovsek, P. Reves, J. Jurss, N. I. Hammer, G. Tschumper, and D. L. Watkins, “Synergistic Effects of Halogen Bond and pi-pi Interactions in Thiophene-based Building Blocks,” RSC Advances, 5, 82544-82548 (2015). DOI: 10.1039/c5Ra16680b

G. E. Tyson, K. Tokmic, C. S. Oian, D. Rabinovich, H. U. Valle, T. K. Hollis, J. T. Kelly, K. A. Cuellar, L.E. McNamara, N. I. Hammer, C. E. Webster, A. G. Oliver, “Synthesis, Characterization, Photophysical Properties, and Catalytic Activity of a SCS bis(N-heterocyclic thione) (SCS-NHT) Pd Pincer Complex,” Dalton Transactions, 44, 14475 - 14482 (2015). DOI: 10.1039/C4DT03324H

J. Bae, L. E. McNamara, M. A. Nael, F. Mahdi, R. J. Doerksen, G. L. Bidwell III, N. I. Hammer and S. Jo, “Nitroreductase‐triggered activation of a novel caged fluorescent probe obtained from methylene blue,” Chemical Communications, 51, 12787-12790 (2015). DOI: 10.1039/C5CC03824C

N. Vunnam, N. I. Hammer, and S. Pedigo, “Basic Residue at Position 14 is Not Required for Fast Assembly and Disassembly Kinetics in Neural Cadherin,” Biochemistry, 54, 836–843 (2015). DOI: 10.1021/bi5010415

F. Begum, J. Fergusona, K. McKenna, L. E. McNamara, N. I. Hammer, and H. Rathnayake, “Preparation of n-Type Semiconducting Polymer Nanoarrays by Covalent Synthesis Followed by Crystallization,” New Journal of Chemistry, 39, 2004-2010 (2015). DOI: 10.1039/C4NJ00968A

A. J. Huckaba, F. Giordano, L. E. McNamara, K. Dreux, N. I. Hammer, G. S. Tschumper, S. M. Zakeeruddin, M. Grätzel, M. K. Nazeeruddi, and J. H. Delcamp, “Indolizine-Based Donors as Organic Sensitizer Compounds for Dye-Sensitized Solar Cells,” Advanced Energy Materials, 5, 201401629 (2015). DOI: 10.1002/aenm.201401629

D. J. George and N. I. Hammer, “Studying the Binomial Distribution Using LabVIEW,” Journal of Chemical Education, 92, 389–394 (2015). DOI: 10.1021/ed500684k

2014

R. N. Compton and N. I. Hammer, “Raman Under Liquid Nitrogen (RUN),” Journal of Physics: Conference Series, 548, 012017 (2014). DOI: 10.1088/1742-6596/548/1/012017

E. R. Frey, A. Sygula, N. I. Hammer, “Particle in a Disk: A Spectroscopic and Computational Laboratory Exercise Studying the Nanomolecular Building Block Corannulene,” Journal of Chemical Education, 91, 2186-2190 (2014). DOI: 10.1021/ed4005062

J. T. Kelly, S. Xu, J. Graham, J. M. Nilles, D. Radisic, A. M. Buonaugurio, K. H. Bowen, Jr., N. I. Hammer, and G. S. Tschumper, “Photoelectron Spectroscopic and Computational Study of Hydrated Pyrimidine Anions,” Journal of Physical Chemistry A,118, 11901–11907 (2014). DOI: 10.1021/jp504724v

L. Xu, V. R. Manda, L. E. McNamara, M. P. Jahan, H. Rathnayake, and N. I. Hammer, “Covalent Synthesis of Perylenediimide-Bridged Silsesquioxane Nanoribbons and Their Electronic Properties,” RCS Advances, 4, 30172-30179 (2014). DOI: 10.1039/C4RA03260H

D. N. Reinemann, G. S. Tschumper, and N. I. Hammer, “Characterizing the B-P Stretching Vibration in Phosphorous Substituted Phosphine Boranes,” ChemPhysChem, 15, 1867-1871 (2014). DOI: 10.1002/cphc.201400036

K. A. Cuellar, K. L. Munroe, D. H. Magers, and N. I. Hammer, “Noncovalent Interactions in Micro-solvated Networks of Trimethylamine N-oxide,” Journal of Physical Chemistry B, 118, 449-459 (2014). DOI: 10.1021/jp408659

2013

A. M. Wright, A. A. Howard, J. C. Howard, G. S. Tschumper, and N. I. Hammer, “Charge Transfer and Blue Shifting of Vibrational Frequencies in a Hydrogen Bond Acceptor,” Journal of Physical Chemistry A, 117, 5435-5446 (2013). (Featured on Cover) DOI: 10.1021/jp401642b

A. Huckaba, B. Cao, T. K. Hollis, H. Valle, J. Kelly, N. I. Hammer, and A. Oliver, “Platinum CCC-NHC Benzimidazolyl Pincer Complexes: Synthesis, Characterization, Photostability, and Theoretical Investigations of a Blue-Green Emitter,” Dalton Transactions, 42, 8820-8826 (2013). DOI: 10.1039/c3dt50438g

H. Rathnayakea, N. Wright, A. Patel, J. Binion, L. E. McNamara, D. J. Scardino, and N. I. Hammer, “Synthesis and Characterization of Poly(3-Hexylthiophene)-Functionalized Siloxane Nanoparticles,” Nanoscale, 5, 3212-3215 (2013). DOI: 10.1039/C3NR34249B

2012

D. J. Scardino, R. Kota, D. L. Mattern, and N. I. Hammer, "Single Molecule Spectroscopic Studies of Two Organic Rectifiers," Chemical Physics Letters, 550, 138-145 (2012). DOI: 10.1016/j.cplett.2012.09.008

W.-Y. Chen, G. Shi, A. K. Hailey, E. S. T. Tsai, N. I. Hammer, and Z. Wu, "Photocatalytic Conversion of Carbon Dioxide to Organic Compounds Using A Green Photocatalyst: An Undergraduate Research Experiment," The Chemical Educator, 17, 166-171 (2012). DOI: 10.1007/s00897122438

H. Rathnayake, J. Binion, A. McKee, D. J. Scardino, and N. I. Hammer, "Perylenediimide Functionalized Bridged-Siloxane Nanoparticles for Bulk Heterojunction Organic Photovoltaics," Nanoscale, 4, 4631-4640 (2012). DOI: 10.1039/C2NR30538K

X. Zhang, A. M. Wright, N. J. DeYonker, T. K. Hollis, N. I. Hammer, C. E. Webster, and E. Valente "Synthesis, Air-stability, Photo-bleaching, and DFT Modeling of Blue Light-Emitting Platinum CCC-N-Heterocyclic Carbene Pincer Complexes," Organometallics, 31, 1664-1672 (2012). DOI: 10.1021/om200687w

J. D. Graham and N. I. Hammer,   "Photocatalytic Water Splitting and Carbon Dioxide Reduction," Handbook of Climate Change Mitigation, Springer, 2012, pp. 1755-1780. DOI: 10.1007/978-1-4419-7991-9_46 

2011

J. C. Howard, N. I. Hammer, and G. S. Tschumper, "Structures, Energetics and Vibrational Frequency Shifts of Hydrated Pyrimidine," ChemPhysChem, 12, 3262-3273 (2011). DOI: 10.1002/cphc.201100457

K. L. Munroe, D. H. Magers, and N. I. Hammer, “Raman Spectroscopic Signatures of Noncovalent Interactions Between Trimethylamine N-oxide (TMAO) and Water,” Journal of Physical Chemistry B, 115, 7699-7707 (2011). DOI: 10.1021/jp203840w

D. N. Reinemann, A. M. Wright, J. D. Wolfe, G. S. Tschumper, and N. I. Hammer,“Vibrational Spectroscopy of N-Methyliminodiacetic Acid(MIDA)-Protected Boronate Ester: Assignment of the B-N Dative Bond Stretching Frequency,” Journal of Physical Chemistry A, 115, 6426-6431 (2011). (Featured on Cover) DOI: 10.1021/jp112016j

D. J. Scardino, A. A. Howard, M. D. McDowell, and N. I. Hammer,“Raman Spectroscopy as the Method of Detection for Constructing a Binary Liquid-Vapor Phase Diagram,” Journal of Chemical Education, 88, 1162-1165 (2011). DOI: 10.1021/ed100016g

Q. Zhao, J. Wang, J. L. Freeman, M. Murphy-Jolly, A. M. Wright, D. J. Scardino, N. I. Hammer, C. M. Lawson, and G. M. Gray,“Syntheses, and Optical, Fluorescence and Nonlinear Optical Characterization of Phosphine-Substituted Terthiophenes,” Inorganic Chemistry, 50, 2015-2027 (2011). DOI: 10.1021/ic101624y

A. M. Wright, L. V. Joe, A. A. Howard, G. S. Tschumper, and N. I. Hammer, “Spectroscopic and Computational Insight into Weak Noncovalent Interactions in Crystalline Pyrimidine,” Chemical Physics Letters, 501, 319-323 (2011). DOI:10.1016/j.cplett.2010.11.046

D. J. Scardino, M. McDowell, J. D. Graham, and N. I. Hammer, “The Multiphoton Ionization Spectrum of Methyl Iodide Revisted: 1.67 - 2.2 eV Excitation,” Journal of Atomic and Molecular Sciences, 2, 93-98 (2011). DOI: 10.4208/jams.010511.011411a

2010

A. A. Howard, G. S. Tschumper, and N. I. Hammer, “Effects of Hydrogen Bonding on Vibrational Normal Modes of Pyrimidine,” Journal of Physical Chemistry A, 114, 6803-6810 (2010). DOI: 10.1021/jp101267w

G. S. Tschumper and N. I. Hammer, “Non-Covalent Interactions: Theory and Experiment,” Journal of the American Chemical Society, 132, 9512 (2010). DOI: 10.1021/ja104759m

M. McDowell, A. E. Wright and N. I. Hammer, “Semiconductor Nanocrystals Hybridized with Functional Ligands: New Composite Materials with Tunable Properties,” Materials, 3, 614-637 (2010). DOI: 10.3390/ma3010614

S. N. Murthy, A. B. Nair, N. I. Hammer, S. R. Kiran Vaka, and A. E. Wright, “Dermatokinetics of Nanoparticles (25 nm),” International Journal of Innovative Pharmaceutical Research, 1 (2), 37-43 (2010).

2009

A. Muraoka, Y. Inokuchi, N. I. Hammer, J.-W. Shin, M. A. Johnson, and T. Nagata, “Structural Evolution of the [(CO₂)_n(H₂O)]^- Cluster Anions: Quantifying the Effect of Hydration on the Excess Charge Accommodation Motif,” Journal of Physical Chemistry A, 113, 8942-8948 (2009). DOI: 106 3/1.2827475

M. D. Barnes, R. H. Paradise, E. Swain, D. Venkataraman, and N. I. Hammer, “Comment on Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules,” Journal of Physical Chemistry A, 113, 9757-9758 (2009). DOI: 10.1021/jp903598t

2008

J. R. Roscioli, N. I. Hammer, M. A. Johnson, K. Diri and K. D. Jordan, “Exploring the correlation between network structure and electron binding energy in the (H₂O)_{7^{- cluster through isomer photoselected vibrational predissociation spectroscopy and ab initio calculations: Addressing complexity beyond types I-III}},” Journal of Chemical Physics, 128, 104314 (2008). DOI: 10.1063/1.2827475

2007

M. Y. Odoi, N. I. Hammer, K. T. Early, K. D. McCarthy, R. Tangirala, T. Emrick and M. D. Barnes, “Fluorescence lifetimes and correlated photon statistics from single CdSe/oligo-(phenylene vinylene) composite nanostructures,” Nano Letters, 9, 2769 (2007). DOI: 10.1021/nl0713068

K. T. Early, K. D. McCarthy, N. I. Hammer, M. Y. Odoi, R. Tangirala, T. Emrick and M. D. Barnes, “Blinking suppression and intensity recurrences in single CdSe-oligo(phenylene vinylene) nanostructures: experiment and kinetic model,” Nanotechnology, 18, 424027 (2007). DOI: 10.1088/0957-4484/18/42/424027

N. I. Hammer, T. Emrick, and M. D. Barnes, “Quantum dots coordinated with conjugated organic ligands: new nanomaterials with novel photophysics,” Nanoscale Research Letters, 2, 282 (2007). (Invited Review) DOI: 10.1007/s11671-007-9062-8 

M. Y. Odoi, N. I. Hammer, H. P. Rathnayake, P. M. Lahti, and M. D. Barnes, “Single Molecule Studies of a Model Fluorenone,” ChemPhysChem, 8, 1481 (2007). DOI: 10.1002/cphc.200700133

H. P. Rathnayake, A. Cirpan, F. E. Karasz, M. Y. Odoi, N. I. Hammer, M. D. Barnes, P. M. Lahti, “Luminescence of Molecular and Block Copolymeric 2,7-Bis(phenylethenyl)-fluorenones; Identifying Green-band Emitter Sites in a Fluorene-Based Luminophore,” Chemistry of Materials, 19, 3265 (2007). DOI: 10.1021/cm070552h

2006

J. R. Roscioli, N. I. Hammer, and M. A. Johnson, “Infrared Spectroscopy of Water Cluster Anions, (H₂O)_3-24^- in the HOH Bending Region: Persistence of the Double H-Bond Acceptor (AA) Water Molecule in the Excess Electron Binding Site of the Class I Isomers,” Journal of Physical Chemistry A, 110, 7517 (2006). (Letter) DOI: 10.1021/jp062029g

N. I. Hammer, K. T. Early, M. Y. Odoi, K. Sill, T. Emrick, and M. D. Barnes, “Quantum Dot/Polymer Composites for Quantum Informatics and Sensor Applications,” Journal of Intelligence Community Research and Development (2006). 

R. Hassey, E. Swain, N. I. Hammer, D. Venkataraman, and M. D. Barnes, “Probing the Chiroptical Response of a Single Molecule,” Science, 314, 1437 (2006). DOI: 10.1126/science.1134231

N. I. Hammer, K. T. Early, K. Sill, M. Y. Odoi, T. Emrick, and M. D. Barnes, “Coverage-mediated suppression of blinking in solid state quantum dot-conjugated organic composite nanostructures,” Journal of Physical Chemistry B, 110, 14167 (2006). (Cover Article) DOI: 10.1021/jp0620645f

M. Y. Odoi, N. I. Hammer, K. Sill, T. Emrick, and M. D. Barnes, “Observation of enhanced energy transfer in individual quantum dot-oligophenylene vinylene nanostructures,“ Journal of the American Chemical Society, 128, 3506 (2006). (Communication) DOI: 10.1021/ja058429j

2005

N. I. Hammer, J. R. Roscioli, J. C. Bopp, J. M. Headrick, and M. A. Johnson, “Vibrational predissociation spectroscopy of the (H2O)-6-21 clusters in the OH stretching region: Evolution of the excess electron binding signature into the intermediate cluster size regime,” Journal of Chemical Physics, 123, 244311 (2005). DOI: 10.1063/1.2134701

N. I. Hammer, J. R. Roscioli, M. A. Johnson, E. M. Myshakin, and K. D. Jordan, “Infrared Spectrum and Structural Assignment of the Water Trimer Anion,“ Journal of Physical Chemistry A, 109, 11526 (2005). DOI: 10.1021/jp053769c

E. G. Diken, N. I. Hammer, M. A. Johnson, R. A. Christie, and K. D. Jordan, “Mid infrared characterization of the NH₄⁺(H₂O)_n clusters in the neighborhood of the n = 20 magic number,“ Journal of Chemical Physics, 123, 164309 (2005). DOI: 10.1063/1.2074487

N. I. Hammer, J. R. Roscioli, and M. A. Johnson, “Identification of two distinct electron binding motifs in the anionic water clusters: A vibrational spectroscopic study of the (H2O)-6 isomers,“ Journal of Physical Chemistry A, 109, 7896 (2005). (Cover Article) DOI: 10.1021/jp052144b

J. M. Headrick, E. G. Diken, R. S. Walters, N. I. Hammer, R. A. Christie, J, Cui, E. M. Myshakin, M. A. Duncan, M. A. Johnson, and K. D. Jordan, “Spectral signatures of hydrated proton vibrations in water clusters,m” Science, 308, 1765 (2005). DOI: 10.1126/science.1113094

N. I. Hammer, E. G. Diken, J. R. Roscioli, E. M. Myshakin, K. D. Jordan, A. B. McCoy, X. Huang, S. Carter, J. M. Bowman, and M. A. Johnson, “The vibrational predissociation spectra of the H₅O₂⁺•RG_n(RG = Ar, Ne) clusters: Correlation of the solvent perturbations in the free OH and shared proton transitions of the Zundel ion,” Journal of Chemical Physics, 122, 244301 (2005). DOI:10.1063/1.1927522

J.-W. Shin, N. I. Hammer, H. Schneider, A. GloB, J. M. Weber, and M. A. Johnson, “Infrared determination of core-ion switching in the (CO₂)_n^- clusters from both the ion and solvent perspectives” Journal of Physical Chemistry A, 109, 3146 (2005). DOI: 10.1021/jp050092k

W. D. Robertson, N. I. Hammer, J. E. Bartmess, K. Diri, K. D. Jordan, and R. N. Compton, “Negative Ions of Ethylene Sulfite,“ Journal of Chemical Physics, 122, 204319 (2005). DOI: 10.1063/1.1913578

N. I. Hammer, S. G. Stepanian, L. Adamowicz, and R. N. Compton, “Isotope Effects in Dipole-Bound Anions of Acetone,“ Physical Review Letters, 94, 153004, (2005). DOI: 10.1103/PhysRevLett.94.153004

2004

N. I. Hammer, J.-W. Shin, J. M. Headrick, E. G. Diken, J. R. Roscioli, G. H. Weddle, and M. A. Johnson, “How do small water clusters bind an excess electron?,” Science, 306, 675 (2004). DOI: 10.1126/science.1102792 

J.-W. Shin, N. I. Hammer, J. M. Headrick, and M. A. Johnson, “Preparation and photoelectron spectrum of the "missing" (H₂O)₄^- cluster,” Chemical Physics Letters, 399, 675 (2004). DOI: 10.1016/j.cplett.2004.10.015

E. G. Diken, N. I. Hammer, and M. A. Johnson, “Preparation and photoelectron spectrum of the glycine molecular anion: Assignment to a dipole-bound electron species with a high-dipole moment, non-zwitterionic form of the neutral core,“ Journal of Chemical Physics, 120, 9899, (2004). DOI: 10.1063/1.1755196

W. Shin, N. I. Hammer, E. G. Diken, M. A. Johnson, R. S. Walters, T. D. Jaeger, M. A. Duncan, R. A. Christie, and K. D. Jordan, “Infrared signature of structural motifs associated with the H⁺(H₂O)_n, n = 6-29, clusters,” Science, 304, 1137 (2004). DOI: 10.1126/science.1096466 

E. A. Price, N. I. Hammer, and M. A. Johnson, “A cluster study of Cl₂^- microhydration: Size-dependent competition between symmetrical H-bonding to the anion and the formation of cyclic water networks in the Cl₂^-•1-5(H₂O) series," Journal of Physical Chemistry A, 108, 3910 (2004). DOI: 10.1021/jp031239f

C. Desfranois, Y. Bouteiller, J. P. Schermann, D. Radisic, S. T. Stokes, K. H. Bowen, N. I. Hammer, and R. N. Compton, “Long-range electron binding to quadrupolar molecules,” Physical Review Letters, 92, 083003 (2004). DOI: 10.1103/PhysRevLett.92.083003

N. I. Hammer, R. J. Hinde, K. Diri, K. D. Jordan, D. Radisic, K. H. Bowen, and R. N. Compton, “Dipole-Bound Anions of Highly Polar Molecules: Ethylene Carbonate and Vinylene Carbonate,” Journal of Chemical Physics, 120, 685 (2004). DOI: 10.1063/1.1629669

2003

N. I. Hammer, K. Diri, K. D. Jordan, C. Desfranois, and R. N. Compton, “Dipole-Bound Anions of Carbonyl, Nitrile, and Sulfoxide Containing Molecules,” Journal of Chemical Physics, 119, 3650 (2003). DOI: 10.1063/1.1590959 - Click here for experimental and calculated molecular properties

N. I. Hammer and R. N. Compton, “Effects of Electric Fields and Collisions on Highly Excited Rubidium Atoms,” European Physical Journal D, 26, 27 (2003). DOI: 10.1140/epjd/e2003-00200-0

2002

N. I. Hammer, F. Gao, R. M. Pagni, and R. N. Compton, “Charge Transfer Reactions between Chiral Rydberg Atoms and Chiral Molecules,” Journal of Chemical Physics, 117, 4299 (2002). DOI: 10.1063/1.1496760

2001

R. N. Compton and N. I. Hammer, “Multipole-Bound Molecular Anions,” in Advances in Gas-Phase Ion Chemistry Volume 4, edited by N. Adams and L. Babcock, Elsevier Science, 2001, pp. 257-291.

N. I. Hammer and R. N. Compton, “Effects of dc Electric Fields on Multiphoton Ionization of Rubidium Atoms at Low and High Densities,” in Tenth International Symposium on RIS Proceedings, edited by J. Parks and J. Young, American Institute of Physics, 2001 pp. 145-153. DOI: 10.1063/1.1405596