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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 9, Number 2
BKCSDE 9(2)
February 20, 1988

Title	Transient Absorption Spectra of Phenothiazine Derivative in the Vesicle System Containing Ru2+ Complex as a Sensitizer
Author	Yong-Tae Park, Young-Doo Kim, Richard D. Burkhart, Norris J. Caldwell
Keywords
Abstract	The Photophysical and photochemical properties of Ruthenium bipyridine with two long hydrocarbon chains, [Ru(bipy)2(dhbipy)]2+ and transient phenothiazine derivative cation radical (PTD+) in the cationic vesicle were studied. Transient absorption spectra of cation radical of phenothiazine derivative in the vesicle system containing the Ru2+ complex, [(Ru(bipy)2(dhbipy)]2+, (1) as sensitizer and phenothiazine derivative as electron donor was observed by XeCl excimer laser photolysis system. Thus the excited ruthenium complex would be quenched by phenothiazine derivative(PTD) reductively in the vesicle system. The quenching rate constant(KQ) of Ru2+ with two long hydrocarbon chains in the vesicle by PTD was 9.6× 108 M-1S-1. The absorption decay kinetics showed that lifetime of phenothiazine derivative cation radical is a value in the 4-8m sec range.
Page	84 - 87
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