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Einfluss intramolekularer Bewegungen auf die Fluoreszenzquantenausbeute
Author(s) -
Calzaferri Gion,
Gugger Heinrich,
Leutwyler Samuel
Publication year - 1976
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19760590611
Subject(s) - intramolecular force , chemistry , quantum yield , fluorescence , yield (engineering) , quantum , solvent , molecule , photochemistry , chemical physics , stereochemistry , thermodynamics , quantum mechanics , organic chemistry , physics
Influence of intramolecular movements on the fluorescence quantum yield. The conditions determining the influence of the movements of different parts of molecules on the fluorescence quantum yield are shown. In the following we discuss four types of intramolecular movements that can help attain the desired fluorescent properties. In the case of methinecyanine dyes such intramolecular movements are responsible for the strong dependence of the fluorescence quantum yield on the solvent viscosity we have observed.