Microwave measurements on ArH2S, ArHDS and ArD2S complexes

R. E. Bumgarner; D. J. Pauley; S. G. Kukolich

doi:10.1016/0022-2860(88)80281-3

Microwave measurements on ArH₂S, ArHDS and ArD₂S complexes

R. E. Bumgarner, D. J. Pauley, S. G. Kukolich

Chemistry and Biochemistry

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11 Scopus citations

Abstract

Recent work on the H₂OSO₂ complex revealed several previously unmeasured ArH₂S transitions. In this work, microwave transitions for ArH_sS, ArHDS and ArD₂S complexes are reported and a structure analysis is presented. The observation of the new set of transitions assigned to a second ArHDS isomer indicates that the hydrogens of H₂S are not rapidly exchanging H for D through internal rotation. The complex is unusual in that quite large differences in the vibrationally averaged structures are seen on isotopic substitution. The apparent presence in such weakly-bound complexes of several coupled modes with large amplitude vibrations causes difficulties in obtaining a single accurate equilibrium structure.

Original language	English (US)
Pages (from-to)	163-171
Number of pages	9
Journal	Journal of Molecular Structure
Volume	190
Issue number	C
DOIs	https://doi.org/10.1016/0022-2860(88)80281-3
State	Published - Nov 1988

ASJC Scopus subject areas

Analytical Chemistry
Spectroscopy
Organic Chemistry
Inorganic Chemistry

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10.1016/0022-2860(88)80281-3

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title = "Microwave measurements on ArH2S, ArHDS and ArD2S complexes",

abstract = "Recent work on the H2OSO2 complex revealed several previously unmeasured ArH2S transitions. In this work, microwave transitions for ArHsS, ArHDS and ArD2S complexes are reported and a structure analysis is presented. The observation of the new set of transitions assigned to a second ArHDS isomer indicates that the hydrogens of H2S are not rapidly exchanging H for D through internal rotation. The complex is unusual in that quite large differences in the vibrationally averaged structures are seen on isotopic substitution. The apparent presence in such weakly-bound complexes of several coupled modes with large amplitude vibrations causes difficulties in obtaining a single accurate equilibrium structure.",

author = "Bumgarner, {R. E.} and Pauley, {D. J.} and Kukolich, {S. G.}",

year = "1988",

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T1 - Microwave measurements on ArH2S, ArHDS and ArD2S complexes

AU - Bumgarner, R. E.

AU - Pauley, D. J.

AU - Kukolich, S. G.

PY - 1988/11

Y1 - 1988/11

N2 - Recent work on the H2OSO2 complex revealed several previously unmeasured ArH2S transitions. In this work, microwave transitions for ArHsS, ArHDS and ArD2S complexes are reported and a structure analysis is presented. The observation of the new set of transitions assigned to a second ArHDS isomer indicates that the hydrogens of H2S are not rapidly exchanging H for D through internal rotation. The complex is unusual in that quite large differences in the vibrationally averaged structures are seen on isotopic substitution. The apparent presence in such weakly-bound complexes of several coupled modes with large amplitude vibrations causes difficulties in obtaining a single accurate equilibrium structure.

AB - Recent work on the H2OSO2 complex revealed several previously unmeasured ArH2S transitions. In this work, microwave transitions for ArHsS, ArHDS and ArD2S complexes are reported and a structure analysis is presented. The observation of the new set of transitions assigned to a second ArHDS isomer indicates that the hydrogens of H2S are not rapidly exchanging H for D through internal rotation. The complex is unusual in that quite large differences in the vibrationally averaged structures are seen on isotopic substitution. The apparent presence in such weakly-bound complexes of several coupled modes with large amplitude vibrations causes difficulties in obtaining a single accurate equilibrium structure.

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EP - 171

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

SN - 0022-2860

IS - C

ER -

Microwave measurements on ArH₂S, ArHDS and ArD₂S complexes

Abstract

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