One-dimensional inorganic framework consisting of the sandwich-type germanomolybdate and the copper complex linker: Synthesis, crystal structure, and magnetic property

A new heteropolymolybdate, (Him)(8)Na7H7[Cu(im)(4)(CuGeMo9O33)(2)][(CuGeMo9O33)(2)]center dot 41H(2)O (1) (im = imidazole), was synthesized and structurally characterized by elemental analysis, IR spectra, UV electronic spectroscopy and X-ray diffraction. Compound 1 exhibits a one-dimensional chain-like framework [Cu(im)(4)(CuGeMo9O33)(2)](10-) with isolated [(CuGeMo9O33)(2)](12-) units residing among the chains, which is first observed in sandwich-type germanomolybdate system. Electrocatalytic experiments show that compound 1 exhibits good electrocatalytic activity for nitrite reduction. The magnetic investigation indicates the existence of antiferromagnetic interactions for 1. (C) 2010 Elsevier B.V. All rights reserved.