Proton Affinities of H2S and H2O

Beauchamp, J. L.; Buttrill, S. E.

doi:10.1063/1.1668912

Cited by 109 publications

(25 citation statements)

References 12 publications

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“…19,20 For the bracketing method,21,22 relative gas-phase basicities are determined by establishing the favored direction of proton transfer between base pairs. The guideline to di †erentiate an endoergic vs. exoergic reaction is typically deÐned at a proton transfer reaction efficiency of 10%.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of proton-binding capabilities of polyether and pyridyl ligands

Shen¹,

Brodbelt²

1998

J. Mass Spectrom.

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Section: Introductionmentioning

confidence: 99%

Evaluation of proton-binding capabilities of polyether and pyridyl ligands

Shen¹,

Brodbelt²

1998

J. Mass Spectrom.

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“…(9) then gives explicit expressions for the ICR signal intensities for all ions in the scheme. One feature of this equation is evident, namely that two ions formed by different processes but having the same mass will be indistinguishable by an experimental intensity measurement, but will contribute separately to the calculated intensity.…”

Section: Theory General Casementioning

confidence: 99%

“…8 These line shape expres-Ion cyclotron resonance (ICR) spectroscopy pro-sions, which are appropriate for high pressure condivides a means of studying ion-molecule reactions at tions, have been extensively discussed. 9 ,lo Bowers, nearly thermal ion kinetic energy.! The ion-molecule Ellrman, and Beauchamp have used the results of such chemistry accessible to study by ICR is rich, and the calculations to measure the ion-molecule reaction rate technique of ICR double resonance 2 is most useful in constants in ethylene up to the formation of secondary establishing the correct relationships between various ions.…”

Section: Introductionmentioning

confidence: 99%

Calculation of Ion–Molecule Reaction Rate Constants from Ion Cyclotron Resonance Spectra: Methyl Fluoride

Marshall

Buttrill

1970

The Journal of Chemical Physics

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Articles you may be interested inTrajectory calculations of ion-molecule momentum transfer rate constants J. Chem. Phys. 95, 6471 (1991);A general method is given for obtaining ion-molecule reaction rate constants from low-pressure ion cyclotron resonance signal intensity measurements; the analysis can be applied to any kinetic scheme including those with tertiary and higher-order products. Steps in the analysis include determining the number of ions in a particular region of the analyzer, calculating from the zero-pressure ICR lineshape the power absorption from ions in that region, and then summing such contributions over all regions of the analyzer. To illustrate the analysis, explicit ICR intensity expressions are derived for a kinetic scheme with stable tertiary species. These expressions are used to determine the rate constants for the ion-molecule reactions in methyl fluoride. The resultant rate constants CH,

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“…148 The absolute minimum on the potential energy surface is a structure with terminally attached proton in trans arrangement to the O(2)-O(3) bond. 151,152 In addition, SH 3 þ and its isotopomers (H 3 S þ , HD 2 S þ , D 3 S þ ) were also observed by various spectroscopic methods. The hexafluoroantimonate salt of 52 is a stable white solid that reacts with water to produce H 2 S. This reaction can be conveniently used to generate H 2 S. The ion 52 has been thoroughly characterized by vibrational spectroscopy and normal coordinate analysis.…”

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confidence: 95%