Research Papers in Physics and Astronomy

 

Date of this Version

March 1992

Comments

Published by American Institute of Physics. J. Chem Phys. 96, 4037 (1992). ©1992 American Institute of Physics. Permission to use. http://jcp.aip.org/.

Abstract

Electron energy loss spectroscopy is used to study the vibrational modes of CH3Cl and CD3Cl excited through the formation of a temporary negative ion state centered at 3.5 eV. Using symmetry and charge distribution arguments together with the experimentally determined excitation functions for several vibrational modes, we confirm that this resonance results from filling of the 8a1 (C–Cl) σ* molecular orbital. Evidence for a broad higher-lying resonance which we attribute to the unfilled 4e orbital is also presented.

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