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Vibrational assignments for indole with the aid of ultrasharp phosphorescence spectra

✍ Scribed by Bruce J. Fender; Kurt W. Short; David K. Hahn; Patrik R. Callis

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 232 KB
Volume: 72
Category: Article
ISSN: 0020-7608
DOI: 10.1002/(sici)1097-461x(1999)72:4<347::aid-qua18>3.0.co;2-o

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✦ Synopsis

A site-selective study of the 3 L phosphorescence from indole in solid a argon at 20 K has revealed a special site from which the emission is exceptionally sharp Ž y1 . Ž y1 . 5 cm fwhm . These spectra are compared with well-resolved 5 cm fwhm fluorescence from the 1 L origin of indole under cold jet conditions. The results are b compared with frequencies and Franck᎐Condon factors generated from ab initio electronic structure calculations on the ground and excited states. On the basis of the data and calculations, new assignments are made.

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