Publications

2015

Snapshots of Proton Accommodation at a Microscopic Water Surface: Understanding the Vibrational Spectral Signatures of the Charge Defect in Cryogenically Cooled H+(H2O)n=2-28 Clusters

Joseph A. Fournier, Conrad T. Wolke, Mark A. Johnson, Tuguldur T. Odbadrakh, Kenneth D. Jordan, Shawn M. Kathmann, and Sotiris S. Xantheas
J. Phys. Chem. A. (Feature Article), Vol. 119, (36), pp. 9425

Vibrational Signatures of Solvent-Mediated Deformation of the Ternary Core Ions in Size-Selected [MgSO4Mg(H2O)n=4-11]2+ Clusters

Joseph W. DePalma, Patrick J. Kelleher, Christopher J. Johnson, Joseph A. Fournier, and Mark A. Johnson
J. Phys. Chem. A., Vol. 119, (30), pp. 8294

Synthesis, Characterization, and Nitrogenase-Relevant Reactions of an Iron Sulfide Complex with a Bridging Hydride

Nicholas Arnet, Thomas Dugan, Fabian Menges, Brandon Mercado, William Brennessel, Eckhard Bill, Mark Johnson, and Patrick Holland
J. Am. Chem. Soc., Vol. 137, (41), pp. 13220

Water Network-Mediated, Electron-Induced Proton Transfer in Anionic [C5H5N·(H2O)n]¯ Clusters

Andrew F. DeBlase, Conrad T. Wolke, Gary H. Weddle, Kaye A. Archer, Kenneth D. Jordan, John T. Kelly, Gregory S. Tschumper, Nathan I. Hammer, and Mark A. Johnson
J. Chem. Phys., Vol. 143, pp. 144305

On The Diffuse Vibrational Signatures of a Single Proton Embedded in the Oxalate Scaffold, HO2CCO2-

Conrad T. Wolke, Andrew F. DeBlase, Christopher M. Leavitt, Anne B. McCoy, Mark A. Johnson
J. Phys. Chem. A, Vol. 119, (52), pp. 13018

2014

Modes of Activation of Organometallic Iridium Complexes for Catalytic Water and C-H Oxidation

Andrew J. Ingram, Arron B. Wolk, Cornelia Flender, Jialing Zhang, Christopher J. Johnson, Ulrich Hintermair, Robert H. Crabtree, Mark A. Johnson, Richard N. Zare
Inorg. Chem., Vol. 53, (1), pp. 423-433

On the Character of the Cyclic Ionic H-Bond in Cryogenically Cooled Deprotonated Cysteine

Andrew F. DeBlase, Steven R. Kass, and Mark A. Johnson
Phys. Chem. Chem. Phys., Vol. 16, pp. 4569

Communication: He-tagged vibrational spectra of the SarGlyH+ and H+(H2O)2,3 ions: Quantifying Tag Effects in Cryogenic Ion Vibrational Predissociation (CIVP) spectroscopy

Christopher J. Johnson, Arron B. Wolk, Joseph A. Fournier, Erin N. Sullivan, Gary H. Weddle, and Mark A. Johnson
J. Chem. Phys., Vol. 140, pp. 221101

Ion Mobility Spectrometry, Infrared Dissociation Spectroscopy and ab initio Computations towards Structural Characterization of the Deprotonated Leucine Enkephalin Peptide Anion in the Gas-Phase

Florian Schinle, Christoph Jacob, Arron Wolk, Jean-Francois Greisch, Matthias Vonderach,Patrick Weis, Oliver Hampe, Mark Johnson, and Manfred Kappes
J. Phys. Chem. A, Vol. 118, pp. 8453

Vibrational spectral signature of the proton defect in the three-dimensional H+(H2O)21 cluster

Joseph A. Fournier, Christopher J. Johnson, Conrad T. Wolke, Gary H. Weddle, Arron B. Wolk, and Mark A. Johnson
Science, Vol. 344, (6187), pp. 1009

Microhydration of Contact Ion Pairs in M2+OH-(H2O)n=1-5 (M=Mg, Ca) Clusters: Spectral Manifestation of a Mobile Proton Defect in the First Hydration Shell

Christopher J. Johnson, Laura C. Dzugan, Arron B. Wolk, Christopher M. Leavitt, Joseph A. Fournier, Anne B. McCoy, and Mark A. Johnson
J. Phys. Chem. A, Vol. 118, pp. 7590-7597

Site-Specific Vibrational Spectral Signatures of Water Molecules in the "Magic" H3O+(H2O)20 and Cs+(H2O)20 Clusters

Joseph A. Fournier, Conrad T. Wolke, Christopher J. Johnson, Mark A. Johnson, Nadja Heine, Sandy Gewinner, Wieland Schöllkopf, Tim K. Esser, Matias R. Fagiani, Harald Knorke, Knut R. Asmis
Proc. Natl. Acad. Sci. USA, Vol. 111, (51), pp. 18132-18137

Cryogenic Ion Chemistry and Spectroscopy

Arron B. Wolk, Christopher M. Leavitt, Etienne Garand, and Mark A. Johnson
Accounts of Chemical Research, Vol. 47, pp. 202

2013

Ionic liquids from the bottom up: Local assembly motifs in [EMIM][BF4] through cryogenic ion spectroscopy

Christopher J. Johnson, Joseph A. Fournier, Conrad T. Wolke, and Mark A. Johnson
J. Chem. Phys., Vol. 139, pp. 224305

Quantifying intrinsic ion-driven conformational changes in diphenylacetylene supramolecular switches with cryogenic ion vibrational spectroscopy

Arron Wolk, Etienne Garand, Ian Jones, Andrew Hamilton, and Mark Johnson
J. Phys. Chem. A, Vol. 117, (29), pp. 5962-5969

Vibrational Predissociation Spectoscopy of Ar-Tagged, Trisubstituted Silyl Cations

Andrew F. DeBlase, Michael T. Scerba, Thomas Leckta, and Mark A. Johnson
Chem. Phys. Lett., Vol. 568–569, pp. 9–13

Isolation and Characterization of a Peroxo Manganese(III) Dioxygen Reaction Intermediate Using Cryogenic Ion Vibrational Predissociation Spectroscopy

Arron B. Wolk, Christopher M. Leavitt, Joseph A. Fournier, Michael Z. Kamrath, Gayan Wijeratneb, Timothy A. Jackson and Mark A. Johnson
Int. J. Mass. Spectrom., Vol. 354-355, pp. 33-38

Aggregation of Small Molecules: From Dimers to Crystals

Gautam Desiraju, Mark A. Johnson, and Wolfram Sander
ChemPhysChem, Vol. 14, pp. 631-633

Origin of the diffuse vibrational signature of a cyclic intramolecular proton bond: anharmonic analysis of protonated 1,8-disubstituted naphthalene ions

Andrew F. DeBlase, Steven Bloom, Thomas Lectka, Kenneth D. Jordan, Anne B. McCoy, and Mark A. Johnson
J. Chem. Phys., Vol. 139, pp. 024301

Structures and fragmentation pathways of size-selected, D2-tagged ammonium/methylammonium bisulfate clusters

Christopher J. Johnson, Mark A. Johnson
J. Phys. Chem. A, Vol. 117, (50), pp. 13265

Pages