✦ LIBER ✦

Resonance Raman excitation profiles of all-trans retinal: theoretical implications

✍ Scribed by A.G. Doukas; B. Aton; R.H. Callender; B. Honig

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 522 KB
Volume: 56
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(78)80232-2

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✦ Synopsis

The excitation profiles of a number of Raman active bands of all-tram retinal have been measured in the visible region. These experimental results are compared to curves obtained from both '22" and 'B" terms arising in the theory of Raman spectra. The A term gives an excellent description of the data. Measurements of depolarization ratios are also in accord with these results. It appears then that the knowledge of geometry change induced upon excitation will provide an adequate basis for interpreting Raman spectra of molecules related to the visual pigments_ *-

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