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Oscillating Franck-Condon factors

✍ Scribed by C.J. Ballhausen

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
286 KB
Volume
201
Category
Article
ISSN
0009-2614

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✦ Synopsis

The strength of the coupling between two normal vibrations of the same symmetry depends in the Born-Oppenheimer approximation upon the electronic state of the molecule. The consequences of a time-dependent relaxation of this coupling are investigated. Such a relaxation can be brought about either by an electronic excitation or by a-forc!d re-arrangement of nuclei in the molecule. Calculations on a model system containing two coupled harmonic oscillators show that the relaxation will lead to oscillating Franck-Condon factors.

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