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Direct Observation of Triplet Reactions of Anthraquinone Vat Dyes Using Nanosecond Laser Photolysis
Author(s) -
Gee Geoffry A.,
Phillips Glyn O.,
Richards John T.
Publication year - 1973
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1973.tb03157.x
Subject(s) - anthracene , photochemistry , anthraquinone , triplet state , chemistry , quenching (fluorescence) , photodissociation , dye laser , nanosecond , reaction rate constant , flash photolysis , laser , fluorescence , kinetics , molecule , organic chemistry , optics , physics , quantum mechanics
The triplet‐triplet spectra of three commercial anthraquinone vat dyes (C.I. 67300, C.I. 59100 and C.I. 60515) were studied in solution at room temperature using laser photolysis. The triplet states of these dyes react with oxygen, and the rate constants for the quenching process were measured, together with the rates of energy transfer from the triplet state to anthracene. These observations are considered in relation to the photoreactivity of these dyes.