Výsledky vyhledávání - "Gary H. Weddle"

Trapping and Structural Characterization of the XNO2·NO3– (X = Cl, Br, I) Exit Channel Complexes in the Water-Mediated X– + N2O5 Reactions with Cryogenic Vibrational Spectroscopy

Autor: Patrick J. Kelleher, Mark A. Johnson, Fabian S. Menges, Barak Hirshberg, Gary H. Weddle, Joanna K. Denton, Joseph W. DePalma, Robert Benny Gerber

Publikováno v: The Journal of Physical Chemistry Letters. 8:4710-4715

The heterogeneous reaction of N2O5 with sea spray aerosols yields the ClNO2 molecule, which is postulated to occur through water-mediated charge separation into NO3ˉ and NO2+ followed by association with Clˉ. Here we address an alternative mechanis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8fb11c798d07c19e41e1a9715c19dd13
https://doi.org/10.1021/acs.jpclett.7b02120

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Vibrational spectral signature of the proton defect in the three-dimensional H + (H 2 O) 21 cluster

Autor: Arron B. Wolk, Gary H. Weddle, Christopher J. Johnson, Mark A. Johnson, Conrad T. Wolke, Joseph A. Fournier

Publikováno v: Science. 344:1009-1012

Blackjack water cluster detected Spectroscopy of protonated water clusters has played a pivotal role in elucidating the molecular arrangement of acid solutions. Whereas bulk liquids manifest broad spectral features, the cluster bands tend to be sharp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71c1e114283f4b5dd8818ccbe4bfa12c
https://doi.org/10.1126/science.1253788

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Vibrational predissociation spectra of the Ar-tagged [CH4· H3O+] binary complex: spectroscopic signature of hydrogen bonding to an alkane

Autor: Steen Hammerum, Gary H. Weddle, Mark A. Johnson, Timothy Laurence Gausco, Solveig Gaarn Olesen

Publikováno v: Molecular Physics. 108:1191-1197

Vibrational predissociation spectra of the Ar-tagged [H3O+ ⋅ X], X = CH4, CD4, N2, and Ar complexes are analysed to explore the hydrogen bonding acceptor properties of an alkane. The observed red shift in the OH stretching transition of the donor i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d7d9a37c0025399865f79ee1a7bc6067
https://doi.org/10.1080/00268971003698056

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Anharmonicities and Isotopic Effects in the Vibrational Spectra of X−·H2O, ·HDO, and ·D2O [X = Cl, Br, and I] Binary Complexes

Autor: Gary H. Weddle, Anne B. McCoy, Ben M. Elliott, Mark A. Johnson, Joseph R. Roscioli, Samantha Horvath

Publikováno v: The Journal of Physical Chemistry A. 114:1556-1568

Vibrational predissociation spectra of the argon-tagged halide monohydrates, X(-) .H(2)O.Ar (X = Cl, Br, or I), are recorded from approximately 800 to 3800 cm(-1) by monitoring the loss of the argon atom. We use this set of spectra to investigate how

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::640c784e8aa1d75f035618de5d74dcb0
https://doi.org/10.1021/jp9088782

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Water network-mediated, electron-induced proton transfer in [C5H5N ⋅ (H2O)n](-) clusters

Autor: Gregory S. Tschumper, Gary H. Weddle, Kaye A. Archer, Conrad T. Wolke, Nathan I. Hammer, Andrew F. DeBlase, John T. Kelly, Kenneth D. Jordan, Mark A. Johnson

Publikováno v: The Journal of chemical physics. 143(14)

The role of proton-assisted charge accommodation in electron capture by a heterocyclic electron scavenger is investigated through theoretical analysis of the vibrational spectra of cold, gas phase [Py ⋅ (H2O)n=3-5](-) clusters. These radical anions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56902eb3a78d12856503b10cf186aa2d
https://pubmed.ncbi.nlm.nih.gov/26472377

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Thermodynamics of water dimer dissociation in the primary hydration shell of the iodide ion with temperature-dependent vibrational predissociation spectroscopy

Autor: Olga Gorlova, Fabian S. Menges, Daniel J. Arismendi-Arrieta, Niklas Tötsch, Conrad T. Wolke, Anne B. McCoy, Joseph A. Fournier, Knut R. Asmis, Rita Prosmiti, Nadja Heine, Francesco Paesani, Mark A. Johnson, Tim K. Esser, Gary H. Weddle, Harald Knorke

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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8 págs.; 6 figs.
© 2015 American Chemical Society. The strong temperature dependence of the I−·(H2O)2 vibrational predissociation spectrum is traced to the intracluster dissociation of the ion-bound water dimer into independent water monome

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfa1f679345aa680664b3417227520ba
https://pubmed.ncbi.nlm.nih.gov/25647222

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Argon Cluster-Mediated Trapping and Vibrational Spectroscopic Characterization of an OH-·HCH2• Intermediate in the O•- + CH4 Reaction

Autor: J. Mathias Weber, Jeffrey M. Headrick, Gary H. Weddle, Mark A. Johnson, Eric G. Diken

Publikováno v: The Journal of Physical Chemistry A. 108:10116-10121

We isolate an [O.CH 4 ]. - intermediate in the reactive O. - + CH 4 encounter using an argon cluster-mediated trapping technique and characterize it using vibrational predissociation spectroscopy. The spectra of the argon-solvated complexes establish

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4fb53b983396eda1eaa0e7c5ab91d417
https://doi.org/10.1021/jp0404403

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Autor: Gary H. Weddle, William H. Robertson, Mark A. Johnson

Publikováno v: The Journal of Physical Chemistry A. 107:9312-9318

We report the infrared photofragmentation spectra of the Cl-·CCl3·nH2O, n = 1−3 complexes and compare the observed pattern of OH stretching vibrations with those displayed by the X-·nH2O, [X = Cl, Br] clusters. The predissociation spectra reveal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c27e3bc23c5bc7ec90bb4d62e8d24c0
https://doi.org/10.1021/jp030641r

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