Rotational temperature dependences of gas phase ion-molecule reactions

Article abstract of DOI:10.1063/1.455679

A technique for measuring the rotational temperature dependences of gas phase ion-molecule rate constants is presented.The technique involves measuring the kinetic energy dependences of the rate constants at several temperatures in a variable temperature selected ion flow drift tube.For a monatomic ion, comparing the rate constants at the same center of mass kinetic energy at different temperatures yields the dependence of the rate constant on the internal temperature of the reactant neutral.For neutrals in which the vibrational modes are inactive at the temperatures of the experiment, the internal energy dependence is the rotational temperature dependence.Two examples are presented here, one in which rotational energy significantly influences the rate constants, approximately T^-0.5, and one in which it does not.Implications for past drift tube experiments are discussed.

Full text of DOI:10.1063/1.455679

Rotational temperature dependences of gas phase ion–molecule reactions
A. A. Viggiano, Robert A. Morris, and John F. Paulson
Citation: The Journal of Chemical Physics 89, 4848 (1988); doi: 10.1063/1.455679
View online: http://dx.doi.org/10.1063/1.455679
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/89/8?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sun, 21 Dec 2014 23:10:18

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sun, 21 Dec 2014 23:10:18

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sun, 21 Dec 2014 23:10:18

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sun, 21 Dec 2014 23:10:18

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sun, 21 Dec 2014 23:10:18