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Type: Artigo de periódico
Title: Synthesis And Electrochemical Characterization Of Bimetallic Ruthenium Complexes With The Bridging η2(σ, σ)-1,3-butadiyne-1,4-diyl Ligand
Author: Stein E.
Oki S.Y.
Vichi E.J.S.
Abstract: The bis(ruthenium)alkyne complex [cis-{RuCl (bpy)2(μ,-C≡C-)}]2 (1) was obtained by treatment of 1 equiv of either 1,4-bis(trimethylsilyl)-1,3-butadiyne or bis(trimetylsilyl)acetylene with 2 equiv of cis-[RuCl2(bpy)2]·2H2O, NaF and NaBF4 salts in methanol/CH2Cl2 mixture (10/1) in 52% and 35% yields, respectively. 1H, 13C{H} NMR and principally electrochemical analyses confirmed that the same product was obtained from the two reactions. Cyclic voltammetric analyses of (1) from 0 to 1.20V displays two one-electron quasi-reversible oxidation peaks attributed to the Ru(II)/Ru(III) couple. The redox processes are separated by 520 mV, indicating a significant electronic communication between the two metallic centers.
Rights: aberto
Identifier DOI: 
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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