Publications
(40) Morales Hernández, H., Ohtsuka, S., Mehmood, A., Bordenca, J., Wen, W., Levine, B. G., and Johnson, C. J., "Resonance Effects from Substituents on L-Type Ligands Mediate Synthetic Control of Gold Nanocluster Frontier Orbital Energies,” submitted. ChemRXiv link
(39) Frederiks, N. C and Johnson, C. J., "Photochemical Mechanisms in Atmospherically-Relevant Iodine Oxide Clusters," J. Phys. Chem. Lett. 15, 6306-6314 (2024). link
(38) Hariharan, A., Bready, C. J., Ajello, J. G., Black, S. H., Shields, G. C., and Johnson, C. J., "Stability and Structure of Potentially Atmospherically Relevant Glycine Ammonium Bisulfate Clusters," J. Phys. Chem. A, 128, 4268–4278 (2024). link
(37) Morales Hernandez, H., Sun, Q., Rosati, M., Gieseking, R. L. M., and Johnson, C. J., "Bonding and Acidity of the Formal Hydride in the Prototypical Au₉(PPh₃)₈H²⁺ Nanocluster," Angew. Chem. Int. Ed., 62, e202307723 (2023). link
(36) Śmiłowicz, D., Eisenberg, S., LaForest, R., Whetter, J., Hariharan, A., Bordenca, J, Johnson, C. J., and Boros, E., "Metal-Mediated, Autolytic Amide Bond Cleavage: A Strategy for the Selective, Metal Complexation-Catalyzed, Controlled Release of Metallodrugs," J. Am. Chem. Soc., 145, 16261–16270 (2023). link
(35) Frederiks, N. C., Hariharan, A., and Johnson, C. J., "Spectroscopic Studies of Clusters of Atmospheric Relevance," Annu. Rev. Phys. Chem., 74, 99-121 (2023). link
(34) Frederiks, N. C., Heaney, D. D., Kreinbihl, J. J., and Johnson, C. J., "The Competition between Hydrogen, Halogen, and Covalent Bonding in Atmospherically Relevant Ammonium Iodate Clusters," J. Am. Chem. Soc., 145, 1165-1175 (2023). link
(33) Sarkar, S., Banerjee, A., Shah, J. A., Mukherjee, U., Frederiks, N. C., Johnson, C. J., and Ngai, M.-Y., "Excited-State Copper-Catalyzed [4 + 1] Annulation Reaction Enables Modular Synthesis of α,β-Unsaturated-γ-Lactams," J. Am. Chem. Soc., 144, 20884–20894 (2022). link
(32) Banerjee, A., Sarkar, S., Shah, J. A., Frederiks, N. C., Baza Bergamino, E. A., Johnson, C. J., and Ngai, M.-Y., "Excited-State Copper Catalysis for the Synthesis of Heterocycles," Angew. Chem. Int. Ed., 61, e202113841 (2022). link
(31) Fagan, J. W., Weerawardene, K. L. D., Cirri, A., Aikens, C. M., and Johnson, C. J., "Toward quantitative electronic structure in gold nanoclusters," J. Chem. Phys., 155, 014301 (2021). link
(30) Kreinbihl, J. J., Frederiks, N. C., and Johnson, C. J., "Hydration motifs of ammonium bisulfate clusters show complex temperature dependence," J. Chem. Phys., 154, 014304 (2021). link
(29) Vaughn, B. A., Koller, A. J., Chen, Z., Ahn, S. H., Loveless, C. S., Cingoranelli, S. J., Yang, Y., Cirri, A., Johnson, C. J., Lapi, S. E., Chapman, K. W., Boros, E., "Homologous Structural, Chemical, and Biological Behavior of Sc and Lu Complexes of the Picaga Bifunctional Chelator: Toward Development of Matched Theranostic Pairs for Radiopharmaceutical Applications," Bioconjugate Chem. 32, 1232-1241 (2020). link
(28) Kreinbihl, J. J., Frederiks, N. C., Waller, S. E., Yang, Y., and Johnson, C. J., "Establishing the structural motifs present in small ammonium and aminium bisulfate clusters of relevance to atmospheric new particle formation," J. Chem. Phys., 153, 034307 (2020). link highlight [Editor's Pick]
(27) Cirri, A., Morales Hernandez, H., and Johnson, C. J., "High Precision Electronic Spectroscopy of Ligand-Protected Gold Nanoclusters: Effects of Composition, Environment, and Ligand Chemistry," J. Phys. Chem. A, 124, 1467-1479 (2020). link [Feature Article]
(26) Cirri, A., Morales Hernandez, H., and Johnson, C. J., "Hydride, Chloride, and Bromide Show Similar Electronic Effects in the Au9(PPh3)83+ Nanocluster," Chem. Commun., 56, 1283-1285 (2020). link
(25) Waller, S. E., Yang, Y., Castracane, E., Kreinbihl, J. J., Nickson, K. A., and Johnson, C. J., "Electrospray Ionization-Based Synthesis and Validation of Amine- Sulfuric Acid Clusters of Relevance to Atmospheric New Particle Formation," J. Am. Soc. Mass Spectrom., 30, 2267-2277 (2019). link
(24) Racow, E. E.,* Kreinbihl, J. J.,* Cosby, A. G., Yang, Y., Pandey, A., Boros, E., and Johnson, C. J., "General Approach to Direct Measurement of the Hydration State of Coordination Complexes in the Gas Phase: Variable Temperature Mass Spectrometry," J. Am. Chem. Soc., 141, 14650-14660 (2019). link *Co-first authors
(23) Cirri, A., Morales Hernandez, H., Kmiotek, C., and Johnson, C. J., "Systematically tuning the electronic structure of gold nanoclusters through ligand derivatization," Angew. Chem. Int. Ed., 58, 13818-13822 (2019). link Nat. Rev. Chem. highlight
(22) Yang, Y. and Johnson, C. J., "Hydration Motifs of Ammonium Bisulfate Clusters of Relevance to Atmospheric New Particle Formation," Faraday Discuss., 217, 47-66, (2019). link
(21) Yang, Y., Waller, S. E., Kreinbihl, J. J., and Johnson, C. J., "Direct Link between Structure and Hydration in Ammonium and Aminium Bisulfate Clusters Implicated in Atmospheric New Particle Formation," J. Phys. Chem. Lett., 9, 5647-5652 (2018). link
(20) Craig, S. M., Johnson, C. J., Ranasinghe, D. S., Perera, A., Bartlett, R. J., Berman, M. R., and Johnson, M. A., "Vibrational Characterization of Radical Ion Adducts between Imidazole and CO2," J. Phys. Chem. A, 122, 3805-3810 (2018). link
(19) Waller, S. E., Yang, Y., Castracane, E., Racow, E. E., Kreinbihl, J. J., Nickson, K. A., and Johnson, C. J., "The Interplay between Hydrogen Bonding and Coulombic Forces in Determining the Structure of Sulfuric Acid-Amine Clusters," J. Phys. Chem. Lett., 9, 1216-1222 (2018). link
Pre - Stony Brook:
(18) Hu, Q, Song, H, Johnson, C. J., Li, J., Guo, H., and Continetti, R. E., "Imaging a multidimensional multichannel potential energy surface: Photodetachment of H-(NH3) and NH4-." J. Chem. Phys., 144, 244211 (2016). link
(17) DePalma, J. W., Kelleher, P. J., Johnson, C. J., Fournier, J. A., and Johnson, M. A., "Vibrational Signatures of Solvent-Mediated Deformation of the Ternary Core Ion in Size-Selected [MgSO4Mg(H2O)n = 4-11]2+ Clusters." J. Phys. Chem. A, 119, 8294–8302 (2015). link
(16) Kelleher, P. J., Johnson, C. J., Fournier, J. A., Johnson, M. A., and McCoy, A. B., "Persistence of Dual Free Internal Rotation in NH4+(H2O)·Hen=0–3 Ion–Molecule Complexes: Expanding the Case for Quantum Delocalization in He Tagging." J. Phys. Chem. A, 119, 4170-4176 (2015). link
(15) Fournier, J. A., Wolke, C. T., Johnson, C. J., McCoy, A. B., and Johnson, M. A., "Comparison of the local binding motifs in the imidazolium-based ionic liquids [EMIM][BF4] and [EMMIM][BF4] through cryogenic ion vibrational predissociation spectroscopy: Unraveling the roles of anharmonicity and intermolecular interactions." J. Chem. Phys., 142, 064306 (2015). link
(14) Fournier, J. A., Wolke, C. T., Johnson, C. J., Johnson, M. A., Heine, N., Gewinner, S., Schöllkopf, W., Esser, T. K., Fagiani, M. R., and Asmis, K. R., "Site-specific vibrational spectral signature of water molecules in the magic H3O+(H2O)20 and Cs+(H2O)20 clusters," Proc. Natl. Acad. Sci. USA, 111, 18132 (2014). link
(13) Johnson, C. J., Otto, R., and Continetti, R. E., “Perspective: Spectroscopy and Dynamics of the HOCO Radical: Insights into the OH + CO → H + CO2 Reaction,” Phys. Chem. Chem. Phys., 19, 19091 (2014). link
(12) Johnson, C. J., Dzugan, L. C., Wolk, A. B., Leavitt, C. M., Fournier, J. A., McCoy, A. B., and Johnson, M. A., “Microhydration of Contact Ion Pairs in M2+OH–n=1-5 (M=Mg, Ca) Clusters: Spectral Manifestations of a Mobile Proton Defect in the First Hydration Shell,” J. Phys. Chem. A, 118, 7590 (2014). [Kenneth D. Jordan Festschrift] link
(11) Johnson, C. J., Wolk, A. B., Fournier, J. A., Sullivan, E. N., Weddle, G. H., and Johnson, M. A., “Communication: He-tagged vibrational spectra of the SarGlyH+ and H+(H2O)2,3 ions: Quantifying tag effects in cryogenic ion vibrational predissociation (CIVP) spectroscopy,” J. Chem. Phys., 140, 221101 (2014). link
(10) Fournier, J. A., Johnson, C. J., Wolke, C. T, Weddle, G. H., Wolk, A. B., and Johnson, M. A., “Vibrational spectral signature of the proton defect in the three-dimensional H+(H2O)21 cluster,” Science, 344, 1009 (2014). link press
(9) Ingram, A. J., Wolk, A. B., Flender, C., Zhang, J., Johnson, C. J., Hintermair, U., Crabtree, R. H., Johnson, M. A., and Zare, R. N., “Modes of activation for organometallic iridium complexes involved in catalytic water and CH oxidation,” Inorg. Chem., 53, 423 (2014). [cover article Jan. 6, 2014] link
(8) Johnson, C. J., Fournier, J. A., Wolke, C. T., and Johnson, M. A., “Ionic liquids from the bottom up: Local assembly motifs in [EMIM][BF4] through cryogenic ion spectroscopy,” J. Chem. Phys., 139, 224305 (2013). link
(7) Leavitt, C. M., DeBlase, A. F., Johnson, C. J., van Stipdonk, M., McCoy, A. B., and Johnson, M. A., “Hiding in Plain Sight: Unmasking the Diffuse Spectral Signatures of the Protonated N-Terminus in Isolated Dipeptides Cooled in a Cryogenic Ion Trap,” J. Phys. Chem. Lett., 4, 3450 (2013). link
(6) Johnson, C. J. and Johnson, M. A., “Vibrational Spectra and Fragmentation Pathways of Size-Selected, D2-Tagged Ammonium/Methylammonium Bisulfate Clusters,” J. Phys. Chem. A, 117, 13265 (2013). [Terry A. Miller Festschrift] link
(5) Johnson, C. J., Harding, M. E., Poad, B. L. J., Stanton, J. F., and Continetti, R. E., “Electron Affinities, Well Depths, and Vibrational Spectroscopy of cis- and trans-HOCO,” J. Am. Chem. Soc., 133, 19606 (2011). link
(4) Johnson, C. J., Shen, B. B., Poad, B. L. J., and Continetti, R. E., “Photoelectron-photofragment coincidence spectroscopy in a cryogenically cooled electrostatic ion beam trap,” Rev. Sci. Instrum., 82, 105105 (2011). link
(3) Johnson, C. J., Poad, B. L. J., Shen, B. B. and Continetti, R. E., “Communication: New insight into the barrier governing CO2 formation from OH + CO,” J. Chem. Phys. 134, 171106 (2011). link
(2) Poad, B. L. J., Johnson, C. J., and Continetti, R. E., “Photoelectron-photofragment coincidence studies of NO−-X clusters (X=H2O, CD4),” Faraday Discussions 150, 481 (2011). link
(1) Johnson, C. J. and Continetti, R. E., “Dissociative photodetachment studies of cooled HOCO- anions revealing dissociation below the barrier to H + CO2,” J. Phys. Chem. Lett. 1, 1895 (2010). link