Sudha, Chellamma ; Chakravarty, Akhil R. (1996) Synthesis, crystal structure and redox properties of μ-oxo-bis(μ-acetato)-diruthenium(III) complexes having 2,2'-bipyridine and imidazole bases as terminal ligands Journal of the Chemical Society, Dalton Transactions, 1996 (15). pp. 3289-3292. ISSN 0300-9246
Full text not available from this repository.
Official URL: http://pubs.rsc.org/en/content/articlelanding/1996...
Related URL: http://dx.doi.org/10.1039/DT9960003289
Abstract
Three diruthenium(III) complexes, [{Ru(bipy)L}2(μ-O)(μ-O2CMe)2][ClO4]2, have been prepared and characterized (L = imidazole, 1- or 4-methylimidazole; bipy = 2,2'-bipyridine). The crystal structure of the 1-methylimidazole complex [Ru2O(O2CMe)2(bipy)2(1-mim)2][ClO4]2·H 2O·MeOH has been determined. The complex has a Ru2(μ-O)(μ-O2CMe)22+ core with terminal unidentate 1-mim and bidentate chelating bipy ligands. The imidazole is trans to the oxide ligand. The Ru Ru distance and Ru-O-Ru angle are 3.285(2)Å and 121.5(3)°. The 1H NMR spectra of the complexes are consistent with this crystal structure. The complexes show an intense charge-transfer band near 600 nm. They are redox active and display reversible one-electron oxidation and reduction processes. On addition of weak proton-donor imidazole bases the complexes undergo a one-step two-electron reduction process RuIIIRuIII-RuIIRuII along with the RuIIIRuIII-RuIIIRuIV oxidation couple.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Royal Society of Chemistry. |
| ID Code: | 78295 |
| Deposited On: | 19 Jan 2012 06:37 |
| Last Modified: | 19 Jan 2012 06:37 |
Repository Staff Only: item control page
