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QUANTUM YIELDS OF TRIPLET FORMATION OF SOME DERIVATIVES OF ANTHRAQUINONE
Author(s) -
McVie James,
Sinclair Roy S.,
Truscott T. George
Publication year - 1979
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1979.tb07065.x
Subject(s) - actinometer , flash photolysis , chemistry , anthraquinone , decomposition , photochemistry , anthraquinones , fluorescence , quantum yield , quantum , photodissociation , laser , absorption (acoustics) , reaction rate constant , kinetics , organic chemistry , physics , optics , quantum mechanics , plasma , botany , biology
— Quantum yields of triplet formation for five amino substituted anthraquinones have been determined by the comparative actinometer method using laser flash photolysis. Substitution reduces the yields to values of ˜10 ‐ ‐ 2 . and the requirement of low laser intensities required high sensitivity of detection of triplet absorption. The ø T values are compared with the quantum efficiencies of fluorescence and decomposition for the compounds, and the criteria for light stability discussed.