Syamala, Ariyanchira ; Chakravarty, Akhil R. (1995) Synthesis, structure and properties of monomeric complexes obtained from the cleavage of a (μ-oxo)bis(μ-carboxylato) diruthenium(III) core Polyhedron, 14 (2). pp. 231-237. ISSN 0277-5387
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/027753...
Related URL: http://dx.doi.org/10.1016/0277-5387(94)00236-8
Abstract
Reaction of [Ru2O(O2CR)2(MeCN)4(PPh3)2](ClO4)2 (1) with 1,2-diaminoethane (en) in MeOH---H2O yielded a mixture of products from which a diamagnetic ruthenium(II) complex [Ru(MeCN)(en)2(PPh3)](ClO4)2 (2) and a paramagnetic ruthenium(III) species [Ru(O2CR)(en)2(PPh3)](BPh4)2 (3) (R = Ph, a>; C6H4-p-Me, b; C6H4-p-OMe, c) were isolated and characterized. The crystal structure of complex 2, obtained by X-ray diffraction analysis, shows a cis arrangement of the unidentate ligands in this octahedral complex. Complex 3 displays an axial EPR spectrum. Complex 2 undergoes two successive irreversible metal-centred one-electron oxidation processes at 1.13 and 1.33 V vs SCE in MeCN-0.1 M [NBU4n]ClO4 at 50 mV s-1. The mechanistic aspects of the core cleavage reactions in 1 are discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 6287 |
| Deposited On: | 20 Oct 2010 11:16 |
| Last Modified: | 27 May 2011 05:19 |
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