Publications

1999

Infrared spectra of hydrogen-bonded ion–radical complexes: I⁻⋅HCH₂ and Br⁻⋅HCHBr

Steen B. Nielsen, Patrick Ayotte, Jude A. Kelley, Gary H. Weddle, and Mark A. Johnson

J. Chem. Phys., Vol. 111, (23), pp. 10464

DOI Link: 10.1063/1.480392

Infrared spectroscopic observation of the argon isomer distribution in evaporative ensembles of I⁻⋅ROH⋅Ar_m (R=methyl, ethyl, isopropyl) clusters

Steen B. Nielsen, Patrick Ayotte, Jude A. Kelley, and Mark A. Johnson

J. Chem. Phys., Vol. 111, (21), pp. 9593

DOI Link: 10.1063/1.480292

Preparation and photoelectron spectrum of the CH₃I⁻ anion: Rare gas cluster mediated synthesis of an ion-radical complex

Jun Kim, Jude A. Kelley, Patrick Ayotte, Steen B. Nielsen, Gary H. Weddle and Mark A. Johnson

J. Am. Soc. Mass Spectrom., Vol. 10, (9), pp. 810-814

DOI Link: 10.1016/S1044-0305(99)00057-4

Photoactivation of the Cl^- + CH₃Br S_N2 Reaction via Rotationally Resolved C−H Stretch Excitation of the Cl^-·CH₃Br Entrance Channel Complex

Patrick Ayotte, Jun Kim, Jude A. Kelley, Steen B. Nielsen, and Mark A. Johnson

J. Am. Chem. Soc., Vol. 121, (29), pp. 6950-6951

DOI Link: 10.1021/ja990814j

An infrared study of the competition between hydrogen-bond networking and ionic solvation: Halide-dependent distortions of the water trimer in the X⁻⋅(H₂O)₃, (X=Cl, Br, I) systems

Patrick Ayotte, Gary H. Weddle, and Mark A. Johnson

J. Chem. Phys., Vol. 110, (15), pp. 7129

DOI Link: 10.1063/1.478616

Infrared spectroscopy of negatively charged water clusters: Evidence for a linear network

Patrick Ayotte, Gary H. Weddle, Christopher G. Bailey, Mark A. Johnson, Fernando Vila, and Kenneth D. Jordan

J. Chem. Phys., Vol. 110, (13), pp. 6268

DOI Link: 10.1063/1.478531

A Cluster Study of Anionic Hydration: Spectroscopic Characterization of the I^-·W_n, 1 ≤ n ≤ 3, Supramolecular Complexes at the Primary Steps of Solvation

Patrick Ayotte, Gary H. Weddle, Jun Kim, Jude Kelley, and Mark A. Johnson

J. Phys. Chem. A, Vol. 103, (4), pp. 443-447

DOI Link: 10.1021/jp9838341

Electron transfer and charge separation in clusters

Caroline E. H. Dessent, Mark A. Johnson, Israela Becker, and Ori Cheshnovsky

Advances in Chemical Physics, Vol. 106, pp. 265-302

DOI Link: 10.1002/9780470141656.ch6

1998

Mass-selected “matrix isolation” infrared spectroscopy of the I⁻·(H₂O)₂ complex: making and breaking the inter-water hydrogen-bond

Patrick Ayotte, Gary H. Weddle, Jun Kim, Mark A. Johnson

Chem. Phys., Vol. 239, (1-3), pp. 485-491

DOI Link: 10.1016/S0301-0104(98)00287-0

Vibrational Spectroscopy of the Ionic Hydrogen Bond: Fermi Resonances and Ion−Molecule Stretching Frequencies in the Binary X^-·H₂O (X = Cl, Br, I) Complexes via Argon Predissociation Spectroscopy

Patrick Ayotte, Gary H. Weddle, Jun Kim, and Mark A. Johnson

J. Am. Chem. Soc., Vol. 120, (47), pp. 12361-12362

DOI Link: 10.1021/ja981979f

Photoelectron spectroscopy of the `missing' hydrated electron clusters (H₂O)_n⁻, n=3, 5, 8 and 9: Isomers and continuity with the dominant clusters n=6, 7 and ≥11

Jun Kim, Israela Becker, Ori Cheshnovsky, and Mark A. Johnson

Chem. Phys. Lett., Vol. 297, (1-2), pp. 90-96

DOI Link: 10.1016/S0009-2614(98)01109-9

Photochemistry of Halide Ion−Molecule Clusters: Dipole-Bound Excited States and the Case for Asymmetric Solvation

Caroline E. H. Dessent, Jun Kim, and Mark A. Johnson

Acc. Chem. Res., Vol. 31, (9), pp. 527-534

DOI Link: 10.1021/ar950061f

Vibrational Spectroscopy of Small Br^-·(H₂O)_n and I^-·(H₂O)_n Clusters: Infrared Characterization of the Ionic Hydrogen Bond

Patrick Ayotte, Christopher G. Bailey, Gary H. Weddle, and Mark A. Johnson

J. Phys. Chem. A, Vol. 102, (18), pp. 3067-3071

DOI Link: 10.1021/jp9803900

Vibrational predissociation spectroscopy of the (H₂O)₆−⋅Ar_n n ≥ 6 clusters

Patrick Ayotte, Christopher G. Bailey, Jun Kim, and Mark A. Johnson

J. Chem. Phys., Vol. 108, (2), pp. 444

DOI Link: 10.1063/1.475406

1997

Photoinitiation of Gas-Phase S_N2 Reactions through the Evans−Polanyi Excited State Surface

Caroline E. H. Dessent and Mark A. Johnson

J. Am. Chem. Soc., Vol. 119, (21), pp. 5067-5068

DOI Link: 10.1021/ja970583l

Vibrational predissociation spectra of I⁻·(H₂O): isotopic labels and weakly bound complexes with Ar and N₂

Christopher G. Bailey, Jun Kim, Caroline E.H. Dessent, Mark A. Johnson

Chem. Phys. Lett., Vol. 269, (1-2), pp. 122-127

DOI Link: 10.1016/S0009-2614(97)00254-6

Characterization of the anionic intracluster polymerization reaction product of 2-chloroacrylonitrile trimers by photoelectron spectroscopy

T. Tsukudaa, T. Kondow, C.E.H. Dessent, C.G. Bailey, M.A. Johnson, J.H. Hendricks, S.A. Lyapustina, K.H. Bowen

Chem. Phys. Lett., Vol. 269, (1-2), pp. 17-21

DOI Link: 10.1016/S0009-2614(97)00255-8

Photoelectron spectroscopy of (CO₂)_n⁻ revisited: core switching in the 2 ≤n≤ 16 range

Tatsuya Tsukuda, Mark A. Johnson, Takashi Nagata

Chem. Phys. Lett., Vol. 268, (5-6), pp. 429-433

DOI Link: 10.1016/S0009-2614(97)00223-6

Determination of the relative photodetachment cross sections of the two isomers of (H₂O)₆⁻ using saturated photodetachment

Christopher G. Bailey, Mark A. Johnson

Chem. Phys. Lett., Vol. 265, (1-2), pp. 185-189

DOI Link: 10.1016/S0009-2614(96)01413-3

Electronic absorption spectra of size-selected hydrated electron clusters: (H₂O)_n⁻, n=6–50

Patrick Ayotte and Mark A. Johnson

J. Chem. Phys., Vol. 106, (2), pp. 811

DOI Link: 10.1063/1.473167

Cover Articles

Hydrogen Tag Shifts as Vibrational Reporters for Positional Isomers of Formylphenides: Surprising Mobility of the Carbanion Center Upon Collisional Decarboxylation of the Parent Benzoates

DOI Link: https://doi.org/10.1021/acs.jpclett.3c03514

Effects of Microhydration on the Mechanisms of Hydrolysis and Cl^- Substitution in Reactions of N₂O₅ and Seawater

DOI Link: https://doi.org/10.1002/cphc.202200819

Water Network Shape-Dependence of Local Interactions with the Microhydrated –NO₂⁻ and –CO₂⁻ Anionic Head Groups by Cold Ion Vibrational Spectroscopy

DOI Link: 10.1021/acs.jpca.2c00721

Preparation and Characterization of the Halogen Bonding Motif in the Isolated Cl⁻∙IOH Complex with Cryogenic Ion Vibrational Spectroscopy

DOI Link: 10.1021/acs.jpclett.2c00218

Vibrational signatures of HNO₃ acidity when complexed with microhydrated alkali metal ions, M⁺∙(HNO₃)(H₂O)_n=5 (M=Li, K, Na, Rb, Cs), at 20 K

DOI Link: 10.1021/acs.jpca.1c10352

Size-Dependent Onset of Nitric Acid Dissociation in Cs⁺(HNO₃)(H₂O)_n=0-11 Clusters at 20 K

DOI Link: 10.1021/acs.jpclett.1c00235

Isolating the Contributions of Specific Network Sites to the Diffuse Vibrational Spectrum of Interfacial Water With Isotopomer-Selective Spectroscopy of Cold Clusters

DOI Link: 10.1021/acs.jpca.0c07795

Ionic Liquid Clusters Generated from Electrospray Thrusters: Cold Ion Spectroscopic Signatures of Size-Dependent Acid−Base Interactions

DOI Link: 10.1021/acs.jpca.0c07595

Vibrational Spectroscopy of the Cryogenically Cooled O- and N-Protomers of 4-Aminobenzoic Acid: Tag Effects, Isotopic Labels, and Identification of the E,Z Isomer of the O-Protomer

DOI Link: 10.1016/j.ijms.2020.116427

Spectroscopic Signatures of Mode-Dependent Tunnel Splitting in the Iodide-Water Binary Complex

DOI Link: 10.1021/acs.jpca.0c00853

Integration of High-Resolution Mass Spectrometry with Cryogenic Ion Vibrational Spectroscopy

DOI Link: 10.1007/s13361-019-02238-y

Tag-Free and Isotopomer-Selective Vibrational Spectroscopy of the Cryogenically Cooled H₉O₄⁺ Cation with Two-Color, IR-IR Double-Resonance: Isolating the Spectral Signature of a Single OH Group in the Hydronium Ion Core

DOI Link: 10.1021/acs.jpca.8b08507

Isolation of the site-specific anharmonicities of individual water molecules in the Iˉ∙(H₂O)₂ complex using tag‐free, isotopomer selective IR‐IR double resonance

DOI Link: 10.1016/j.cplett.2017.09.042

Spectroscopic characterization of a strongly interacting C₍₂₎H group on the EMIM⁺ cation in the (EMIM⁺)₂Xˉ, (X = BF₄, Cl, Br, and I) ternary building blocks of ionic liquids

DOI Link: 10.1063/1.5009009

Capture of CO₂ by a Cationic Ni^I Complex in the Gas Phase and Characterization of the Bound Activated CO₂ Molecule through Cryogenic Ion Vibrational Predissociation Spectroscopy

DOI Link: 10.1002/anie.201507965

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

DOI Link: 10.1021/acs.jpca.5b04355

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

DOI Link: 10.1021/ic402390t

Vibrational manifestations of strong non-Condon effects in the H₃O⁺·X₃(X = Ar, N₂, CH4, H2O) complexes: A possible explanation for the intensity in the “association band” in the vibrational spectrum of water

DOI Link: 10.1039/C2CP24110B

Publications

1999

Infrared spectra of hydrogen-bonded ion–radical complexes: I−⋅HCH2 and Br−⋅HCHBr

Infrared spectroscopic observation of the argon isomer distribution in evaporative ensembles of I−⋅ROH⋅Arm (R=methyl, ethyl, isopropyl) clusters

Preparation and photoelectron spectrum of the CH3I− anion: Rare gas cluster mediated synthesis of an ion-radical complex

Photoactivation of the Cl- + CH3Br SN2 Reaction via Rotationally Resolved C−H Stretch Excitation of the Cl-·CH3Br Entrance Channel Complex

An infrared study of the competition between hydrogen-bond networking and ionic solvation: Halide-dependent distortions of the water trimer in the X−⋅(H2O)3, (X=Cl, Br, I) systems

Infrared spectroscopy of negatively charged water clusters: Evidence for a linear network

A Cluster Study of Anionic Hydration: Spectroscopic Characterization of the I-·Wn, 1 ≤ n ≤ 3, Supramolecular Complexes at the Primary Steps of Solvation

Electron transfer and charge separation in clusters

1998

Mass-selected “matrix isolation” infrared spectroscopy of the I−·(H2O)2 complex: making and breaking the inter-water hydrogen-bond

Vibrational Spectroscopy of the Ionic Hydrogen Bond: Fermi Resonances and Ion−Molecule Stretching Frequencies in the Binary X-·H2O (X = Cl, Br, I) Complexes via Argon Predissociation Spectroscopy

Photoelectron spectroscopy of the `missing' hydrated electron clusters (H2O)n−, n=3, 5, 8 and 9: Isomers and continuity with the dominant clusters n=6, 7 and ≥11