Novel Copper-Complex-Substituted Tungstogermanates
Inorganic Chemistry2007Vol. 46(3), pp. 616–618
Citations Over TimeTop 10% of 2007 papers
Abstract
Two copper-complex-substituted tungstogermanates [Cu5(2,2'-bpy)6(H2O)][GeW8O31].9H2O, 1, and {[Cu5(2,2'-bpy)5(H2O)][GeW9O34]}2.7H2O, 2 (2,2'-bpy = 2,2'-bipyridyl), have been hydrothermally synthesized and structurally characterized. X-ray structural analyses show that 1 is a rare tetralacunary Keggin anion of [B-beta-GeW8O31]10- substituted by copper complexes, while dimer 2 consists of two trilacunary [B-alpha-GeW9O34]10- Keggin units bridged by copper complexes. Magnetic measurement for 2 shows the presence of antiferromagnetic interactions within the dinuclear Cu2+ cations.
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