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Excitation conversion in excimers and exciplexes of aromatic hydrocarbons

โœ Scribed by N.L. Vekshin

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
280 KB
Volume
47
Category
Article
ISSN
1386-1425

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โœฆ Synopsis

AbsWact-Flurorescence

spectra of a number of aromatic hydrocarbons, their excimers and exciplexes with diethylaniline have been measured in n-hexane under aerobic conditions. It has been found that the value of the red shift of the structureless excimer or exciplex band in reference to the monomer fluorescence band is about 4200 or 3000 cm-', respectively. For indole-ethanol exciplexes the red shift was about 3700 cm-'. It is suggested, that the shift depends on the intramolecular vibrations in the quencher accepting the vibrational energy from the electronically excited donor molecule. It has been proposed that excimer and exciplex fluorescence occurs due to the donor emission of a number of quanta from the virtual levels.

๐Ÿ“œ SIMILAR VOLUMES

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