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A Novel Effect of a Polyelectrolyte on a Photochemically Induced Electron Transfer Process Involving a Zwitterion
Author(s) -
Sassoon Richard E.,
Rabani Joseph
Publication year - 1982
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.198200026
Subject(s) - chemistry , photosensitizer , electron transfer , photochemistry , ruthenium , zwitterion , polyelectrolyte , tris , quenching (fluorescence) , chromophore , quantum yield , fluorescence , polymer , organic chemistry , catalysis , molecule , biochemistry , physics , quantum mechanics
A photoelectron transfer system containing the photosensitizer tris (2,2′‐bipyridyne) ruthenium II chloride, and the quencher N, Nî, di(4‐sulfonato toluyl) 4,4′‐bipyridine is described. Following a laser pulse the exited state of the photosensitizer is quenched by BSV giving a net yield of electron transfer of about 0.1. Addition of the polyelectrolyte polyvinyl sulfate (PVS) markedly enhances the rate of quenching. The decay of the electron transfer products Ru(bpy) 3+ 3 and BSV + is considerably retarded in the same system upon addition of PVS.