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Hot luminescence spectra of quinizarin in a supersonic expansion

✍ Scribed by J. Subbi

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 518 KB
Volume: 109
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(84)85389-0

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✦ Synopsis

The fluorescence excitation spectrum and Ikoresccnce spectra from 25 different vibrational ievels of the St state of 1,4dihydrosyanthraquinone were measured. From these spectrc, the frequencies of non-totally symmetric vibrations in the Su state were deduced. Strong mhing of normal coordinates under electronic escitation was observed_ Strong anharmonicity of vibrations of the hydrogen bond was evidenced by pronounced Fermi resonance as loo as 590 cm-l above the O-O energy and involving levels more rh-dn 10 cm-' apart.

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