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Conferences > OAM > 1990 > FG > FG2

Methyl rotors in large molecules: probes of intramolecular vibrational relaxation and electronic structure

David W. Pratt

Open Access Open Access

Abstract

A methyl (CH3) group that is attached to a large molecule by a covalent bond adopts a preferred conformation with respect to nearby bonds and exhibits large-amplitude torsional motion. Both the preferred conformations and torsional motions are influenced by the local electronic environment. Additionally, the low-frequency torsional modes may couple to other molecular vibrational modes, providing a mechanism for intramolecular vibrational energy redistribution (IVR).

© 1990 Optical Society of America

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