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Raman spectra of pyrazine resonant to the S2(π,π*) state and the geometry in excited state

✍ Scribed by I. Suzuka; Y. Udagawa; M. Ito

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
286 KB
Volume
64
Category
Article
ISSN
0009-2614

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✦ Synopsis

Raman spectra resonant to the S 2 ( X,X*) state of pyrszine vapor consist of fundamentals. overtones and combinations of only two totally symmetric vibrations, vI and vaa_ Combining the Raman %ith tile absorption spectra it is euperimentaily verified that the molecular deformation upon e.ucitation is reflected on the resonamze Raman spectral _ Introduction Vibronic expansion combined with the Kramers-Heisenberg dispersion equation was successfully applied for the understanding of Raman intensity by several authors and conveniently reviewed by Tang and Albrecht [ 1] _ The most valuable feature of the vibronic theory of Raman intensity lies in that it has revealed the relationship between the Raman intensity and the

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