Electron transfer in bis-porphyrin donor-acceptor compounds with polyphenylene spacers shows a weak distance dependence

A Helms, D Heiler, G McLendon

Index: Helms, Anna; Heiler, David; McLendon, George Journal of the American Chemical Society, 1992 , vol. 114, # 15 p. 6227 - 6238

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Citation Number: 307

Abstract

Abstract: A series of phenylene-bridged bis-porphyrin adducts have been synthesized, containing one, two, or three phenyl bridges. Complete synthetic details are provided. For studies of photochemical electron transfer, mixed metals were incorporated, with zinc in one porphyrin macrocycle and Fell1 (bis-imidazole) in the other macrocycle. When photoexcited, an electron is transferred from Zn to FelI1. The rate of this process drops only slowly with ...