Acta Cryst. (2004). E60, m647-m649  [ doi:10.1107/S1600536804009249 ]

Polymeric bis(hydrogen pyrazine-2,3-dicarboxylato)copper(II) N,N'-dimethylformamide disolvate

G.-Q. Xiang, N.-W. Zhu, M.-L. Hu, H.-P. Xiao and X.-X. Chen

Abstract: In the title compound, {[Cu(C₆H₃N₂O₄)₂]·2C₃H₇NO}_n, each copper(II) center is surrounded by two N atoms, two bridging carboxylate O atoms from two pyrazine-2,3-dicarboxylate anions, and two bridging carboxylate O atoms of two pyrazine-2,3-dicarboxylate anions from neighboring units, forming an elongated CuN₂O₄ octahedron. The [Cu(C₆H₃N₂O₄)₂] blocks, with the copper(II) cation located on a center of inversion, are connected together by four -carboxylate bridges, creating a one-dimensional intersecting double chain.

Online 24 April 2004

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