Artigo
Electrosynthesis of binuclear ruthenium complexes from [RuCl3(dppb)(L)] precursors [L = pyridine, 4-methylpyridine or dimethyl sulfoxide; dppb=1,4-bis(diphenylphosphino)butane]
Fecha
2000-01-01Registro en:
Journal of the Chemical Society-dalton Transactions. Cambridge: Royal Soc Chemistry, n. 19, p. 3383-3386, 2000.
1470-479X
10.1039/b001422m
WOS:000089553100023
Autor
Universidade Federal de São Carlos (UFSCar)
Universidade Estadual Paulista (Unesp)
Universidade Federal do Ceará (UFC)
Universidade de São Paulo (USP)
Resumen
Electrolysis has been examined as a method of synthesis for [(L)(dppb)Ru(mu-Cl)(3)RuCl(dppb)] complexes, where dppb = 1,4-bis(diphenylphosphino)butane and L = pyridine (py), 4-methylpyridine (4-pic) or dimethyl sulfoxide (DMSO), by using [RuCl3(dppb)(L)] as precursors. The products of the electrolysis were characterized by P-31-{H-1} NMR, cyclic voltammetry and near infrared spectroscopy. The presence of the [Ru2Cl5(dppb)(2)] complex in the electrochemical cell suggests a mechanism by which the starting original species from the bulk solution reacts with the reduced form [RuCl2(dppb)(L)] generated at the surface of the electrode. The crystal structure of the precursor mer-[RuCl3(dppb)(4-pic)] was determined by X-ray diffraction.