catena-Poly[[bis-(2-methyl-pyrazine-κN 4)copper(II)]-di-μ-bromido].

Abstract

The reaction of 2-methyl-pyrazine with copper(II) bromide via gel diffusion yielded crystals of the title compound, [CuBr2(C5H6N2)2] n . The compound crystallizes in the monoclinic P21/n space group and the metal atom (site symmetry 1) adopts a square-planar CuBr2N2 coordination geometry. Short Cu⋯Br contacts, nearly perpendicular to the Cu coordination plane, link the mol-ecules into chains propagating parallel to the a-axis direction, which are well separated by the bulk of the methyl-pyrazine ligands.

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