Bhattacharya, Samaresh (1993) 8-quinolinolate complexes of ruthenium(ii). Synthesis, characterization and electron transfer properties Polyhedron, 12 (2). pp. 235-239. ISSN 0277-5387
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S02775...
Related URL: http://dx.doi.org/10.1016/S0277-5387(00)81632-0
Abstract
Two stable 8-quinolinolate complexes of ruthenium(II), [Ru(bpy)(Q)]ClO4 and [Ru(tap)2(Q)]ClO4 [bpy = 2,2′-bipyridine, Q=8-quinolinolate anion, tap = 2-(m-tolylazo) pyridine] have been synthesized. The complexes are diamagnetic and show strong absorption near 1100 cm-1 in the IR spectra due to the presence of ClO-4. In acetonitrile solution they behave as 1¦1 electrolytes. The complexes display intense absorption bands in the visible region (400-700 nm) which are assigned to MLCT transitions. The formal potential (E0298), determined cyclic voltammetrically for the ruthenium(II)-ruthenium(III) oxidation, is 0.48 V vs SCE for [Ru(bpy)2(Q)]+. The same oxidation takes place irreversibly at 1.00 V vs SCE (Eρα value) in the case of [Ru(tap)2(Q)]+. Reductions of the bound bpy and tap ligands are also observed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 1901 |
| Deposited On: | 08 Oct 2010 11:38 |
| Last Modified: | 08 Oct 2010 11:38 |
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