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Two pentacoordinate copper(II) complexes that display accessible Cu(III/II) couples

Drew, M.G.B., Naskar, J.P., Chowdhury, S. and Datta, D. (2003) Two pentacoordinate copper(II) complexes that display accessible Cu(III/II) couples. Indian Journal of Chemistry Section A, 42 (10). pp. 2531-2535. ISSN 0376-4710

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Two copper(II) complexes of the type CuL2.imidazole (1) and Cu2L4(4.4'-bpy).2H(2)O.C6H14 (2), where LH = 1-nitroso-2-naphthol and 4.4'-bpy = 4,4'-bipyridine, are characterised by X-ray crystallography. In 2, the two copper atoms are linked by 4,4'-bpy. In both the complexes, copper is found to have a distorted square pyramidal N3O2 coordination sphere. The axial position in I is occupied by an oxygen atom while those in 2 by the nitrogen atoms of 4.4'-bpy. The two complexes display quasireversible Cu(III/II) couples around 0.68 V vs. saturated calomel electrode in cyclic voltammetry in dichloromethane.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11227
Uncontrolled Keywords:SPECTROSCOPY

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