p-Carborane:  A New Cage Spacer for Photoactive Metal Polypyridine Dyads

The first example of a binuclear ruthenium complex involving the p-carborane framework in the bridging ligand is reported. The bridging ligand is a symmetric linear array comprising a central p-carborane unit, two p-phenylene spacers, and two 5-yl-2,2‘-bipyridine coordinating units. A homobinuclear...

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Published inInorganic chemistry Vol. 45; no. 11; pp. 4331 - 4333
Main Authors Ghirotti, Marco, Schwab, Peter F. H, Indelli, M. Teresa, Chiorboli, Claudio, Scandola, Franco
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 29.05.2006
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Summary:The first example of a binuclear ruthenium complex involving the p-carborane framework in the bridging ligand is reported. The bridging ligand is a symmetric linear array comprising a central p-carborane unit, two p-phenylene spacers, and two 5-yl-2,2‘-bipyridine coordinating units. A homobinuclear RuII complex, with 2,2‘-bipyridine as peripheral ligands, was synthesized and characterized. The RuII−RuIII mixed-valence species, obtained by partial oxidation, has been investigated with steady-state and time-resolved techniques in CH3CN. The rate of photoinduced electron transfer is 2.3 × 108 s-1.
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ISSN:0020-1669
1520-510X
DOI:10.1021/ic060327m