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Syntheses, characterization and redox properties of di- and poly-phosphine linked oligomeric complexes of oxo-centered triruthenium clusters
- Source :
-
Inorganica Chimica Acta . Mar2006, Vol. 359 Issue 5, p1531-1540. 10p. - Publication Year :
- 2006
-
Abstract
- Abstract: A series of phosphine-linked oligomers of oxo-centered triruthenium-acetate clusters have been prepared by the reaction of [Ru3O(OAc)6(py)2(CH3OH)](PF6) (1) with di- or poly-phosphine. They have been characterized by elemental analysis, ESI-MS spectrometry, UV–Vis, IR, and 31P NMR spectroscopy, and cyclic and differential pulse voltammetry. The structures of diphosphine-linked dimeric compounds 4 and 7 were determined by X-ray crystallography. As revealed by redox wave splitting, weak to moderate electronic communication is operative between triruthenium clusters across bridging di- or poly-phosphine. With increase of the methylene number in Ph2P(CH2) n PPh2, electronic communication decreases rapidly in diphosphine-linked dimeric complexes [{Ru3O(OAc)6(py)2}2{μ-Ph2P(CH2) n PPh2}]2+ (n =1–5). [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00201693
- Volume :
- 359
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Inorganica Chimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 20013501
- Full Text :
- https://doi.org/10.1016/j.ica.2005.12.027