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Title:
Association of CH3(+) and H2 - Conflicting results
Authors:
Bates, David R.
Affiliation:
AA(Belfast, Queen's University, Northern Ireland)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 375, July 10, 1991, p. 833-842. NSF-supported research. (ApJ Homepage)
Publication Date:
07/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Association Reactions, Hydrocarbons, Hydrogen, Interstellar Chemistry, Molecular Clouds, Computational Chemistry, Molecular Spectra, Reaction Kinetics
DOI:
10.1086/170247
Bibliographic Code:
1991ApJ...375..833B

Abstract

The radiative association process CH3(+) + H2 - CH5(+) + h nu is of interest in relation to the chemistry of interstellar clouds. Here, earlier calculations on association in CH3(+) + H2 and CD3(+) + D2 are extended and refined. It is concluded that there are serious discrepancies between recent measurements made with an 80 K low-pressure ion trap and theory and measurements made with the SIFT apparatus at 80 K, 0.4 torr, and a 13 K ultralow pressure ion trap.

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