Author

Barry Walker

Publication Date

1999

Document Type

Dissertation/Thesis

First Advisor

Sunderlin, Lee

Degree Name

M.S. (Master of Science)

Department

Department of Chemistry and Biochemistry

LCSH

Mass spectrometry||Afterglow (Physics)||Thermochemistry||Formic acid||Halides||Tetrachlorides||Anions

Abstract

This thesis describes the investigation of the thermochemical properties of formic acid-halide clusters and group 15 tetrachloride anions by using a flowing afterglow apparatus. Energy resolved collision induced dissociation experiments are performed to obtain the thermochemical data. The resulting 0 K bond dissociation energies (in kJ mol^-1) are D(HCOOH-X') = 114 ? 9, 70 ? 7, and 52 ? 9 for X = Cl, Br, and I respectively. The second bond dissociation energies are D[(HCOOH)X -HCOOH] = 50 ? 9, 43 ? 7, and 45 ? 9, respectively. For the group 15 tetrachloride anions, the 0 K bond dissociation energies are D(ACl[sub 3]-Cl') = 80 ? 7, 107 ? 7, 134 ?10, and 130 ? 10 for A = P, As, Sb, and Bi, respectively. The periodic trends of these systems are analyzed and discussed. A history of flowing afterglow mass spectrometry and a comparison to other thermochemical instrumentation are given as well.

Comments

Includes bibliographical references (pages [78]-83)

Extent

x, 83 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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