Shuklaa, Atindra D. ; Das, Amitava (2000) Redox responsive binuclear complexes using 5,6-dihydroxy-1,10-phenanthroline as a bridging ligand: synthesis, characterization and physicochemical studies Polyhedron, 19 (26-27). pp. 2605-2611. ISSN 0277-5387
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0277-5387(00)00563-5
Abstract
A set of new binuclear complexes has been synthesized and characterized using redox active bridging ligands (BL), 5,6-dihydroxy-9,10-phenanthroline (dpcatH2) and M(bipy)2Cl2 (M is Ru(II) or Os(II))/Ru(tpzea)Cl2 (tpzea is tris(N-pyrazolyl ethyl) amine) as the building blocks. For all binuclear complexes a large degree of stabilization of the semiquinone (sq) state for the Ru(bpy)2(dpsq)+ fragment has been observed. UV-Vis, electrochemical and spectroelectrochemical studies clearly show that the first two redox processes involve only the bridging ligand. Further experimental results show that auxiliary ligands coordinated to the metal center do not have any appreciable effect on the redox behavior of the bridging ligand.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Synthesis; Semiquinone; Ruthenium; Spectroelectrochemical Studies; Redox |
| ID Code: | 59908 |
| Deposited On: | 07 Sep 2011 14:18 |
| Last Modified: | 07 Sep 2011 14:18 |
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