3, 3', 5, 5'-Tetrapyridylbiphenyl, a bis-cyclometalating bridging ligand with a high coupling ability in ruthenium (III), ruthenium (II) mixed valence systems

…, JP Collin, R Louis, B Metz, JP Sauvage

Index: Beley, Marc; Collin, Jean-Paul; Louis, Remy; Metz, Bernard; Sauvage, Jean-Pierre Journal of the American Chemical Society, 1991 , vol. 113, # 22 p. 8521 - 8522

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Citation Number: 168

Abstract

The search for bridging ligands allowing electronic communication between metal centers is an important target related to long-range electron transfer and photoinduced charge separation.'Following the pioneering work of Creutz and Taube on 1, 4-pyrazine-bridged Ru", Ru"'mixed valence complexes, 2 several bridging ligands of various lengths have been used. 3 Most of them and in particular 4, 4'-bipyridine lead to class I1 complexes (valence- ...

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