✦ LIBER ✦

Interaction of the excited singlet state of disubstituted anthraquinones with aromatic hydrocarbons: a fluorescence-quenching study

✍ Scribed by Haridas Pal; Dipak K. Palit; Tulsi Mukherjee; Jail P. Mittal

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 461 KB
Volume: 173
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)85283-i

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✦ Synopsis

The dynamic nature of the quenching of the fluorescence of 1,4_amino-and hydroxy-substituted 9, IO-anthraquinone, with benzene, alkylbenzenes and other aryl hydrocarbons as quenchers, indicates formation of exciplexes, where charge transfer (CT) occurs from the S, (quencher) to the S, (fluoropliore), as /cq decreases with increasing ionisation potential of the quenchers. Exciplex emission spectra and kinetics have been established.