[Cu(mim)4]2[α-Mo8O26] – A layer-type octamolybdate framework

By reaction of (NH4)6Mo7O24·4H2O, Cu(NO3)2·2.5H2O and 1-methylimidazole (mim) under hydrothermal conditions the novel copper molybdate [Cu(mim)4]2[α-Mo8O26] is obtained in the form of blue, rectangular-shaped crystals. The title compound crystallizes with monoclinic lattice symmetry in the space group P21/n. The predominant structural feature of the title compound is a two-dimensional framework that is constituted by [α-Mo8O26]4−octamolybdate units as framework nods and the copper complex [Cu(mim)4]2+ as a linker. In addition to single-crystal structure analysis [Cu(mim)4]2[α-Mo8O26] is characterized by powder diffraction as well as by FT-IR and UV–vis spectroscopy.

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