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The Amidinium–Carboxylate Salt Bridge as a Proton‐Coupled Interface to Electron Transfer Pathways
Author(s) -
Deng Yongqi,
Roberts James A.,
Peng ShieMing,
Chang C. K.,
Nocera Daniel G.
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199721241
Subject(s) - salt bridge , carboxylate , electron transfer , proton , proton coupled electron transfer , chemistry , salt (chemistry) , ion , dielectric , bridge (graph theory) , electron , photochemistry , stereochemistry , materials science , organic chemistry , physics , medicine , biochemistry , quantum mechanics , mutant , gene , optoelectronics
An unusually slow electron transfer takes place in the porphyrinato complex 1 (M = Ni, Zn). The rate of this proton‐coupled electron transfer is influenced by a salt bridge in which benzoate ions are bound to the amidinium group, even in solvents with a high dielectric constant, such as DMSO.