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A joint local mode and normal mode interpretation of vibrational anharmonicity in methyl bromide

โœ Scribed by J.L. Duncan

Book ID
108007516
Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
777 KB
Volume
45
Category
Article
ISSN
1386-1425

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Local mode and normal mode interpretatio
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The =CHI and =CD2 stretching vibrational overtones of H&-CD2 have been studied up to V= 6 and V= 3, respectively. We report their interpretation in terms of a transition from normal to local modes, involving Fermi resonance with the C-C stretching and CHz scissoring vibrations. We discuss the altern

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The stretching and bending vibrations of methane are described in a local-mode anharmonic symmetry adapted model. Both Hecht-and Fermi-like interactions are considered. We start by establishing the Hamiltonian of the system in terms of internal coordinates and momenta. The Hamiltonian is then rewrit