title: Communication between remote moieties in linear Ru-Ru-Ru trimetallic cyanide-bridged complexes.
abstract: In this article, we report the structural, spectroscopic, and electrochemical properties of the cyanide-bridged complex salts trans-[(NC)Ru(II)(L)4(μ-CN)Ru(II)(py)4Cl]PF6 and trans-[Ru(II)(L)4{(μ-CN)Ru(II)(py)4Cl}2](PF6)2 (L = pyridine or 4-methoxypyridine). The mixed-valence forms of these compounds show a variety of metal-to-metal charge-transfer bands, including one arising from charge transfer between the remote ruthenium units. The latter is more intense when L = 4-methoxypyridine and points to the role of the bridging ruthenium unit in promoting mixing between the dπ orbitals of the terminal fragments.
authors: Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, 3 piso, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
authors: German E
authors: GE
authors: Pieslinger
authors: Pablo
authors: P
authors: Albores
authors: Leonardo D
authors: LD
authors: Slep
authors: Benjamin J
authors: BJ
authors: Coe
authors: Cliff J
authors: CJ
authors: Timpson
authors: Luis M
authors: LM
authors: Baraldo