Communication between Remote Moieties in Linear Ru–Ru–Ru Trimetallic Cyanide-Bridged Complexes

Communication between Remote Moieties in Linear Ru–Ru–Ru Trimetallic Cyanide-Bridged Complexes

In this article, we report the structural, spectroscopic, and electrochemical properties of the cyanide-bridged complex salts trans-[(NC)RuII(L)4(μ-CN)RuII(py)4Cl]PF6 and trans-[RuII(L)4{(μ-CN)RuII(py)4Cl}2](PF6)2 (L = pyridine or 4-methoxypyridine). The mixed-valence forms of these compounds show a...

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Bibliographic Details
Published in:Inorganic chemistry Vol. 52; no. 6; pp. 2906 - 2917
Main Authors: Pieslinger, German E, Albores, Pablo, Slep, Leonardo D, Coe, Benjamin J, Timpson, Cliff J, Baraldo, Luis M
Format: Journal Article
Language:English
Published: United States American Chemical Society 18-03-2013
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Summary:In this article, we report the structural, spectroscopic, and electrochemical properties of the cyanide-bridged complex salts trans-[(NC)RuII(L)4(μ-CN)RuII(py)4Cl]PF6 and trans-[RuII(L)4{(μ-CN)RuII(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.
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ISSN:0020-1669
1520-510X
DOI:10.1021/ic302173g