Acta Cryst. (2003). E59, m212-m214  [ doi:10.1107/S1600536803006883 ]

Dipotassium disodium trans-bis(pyrazine-2,3-dicarboxylato)copper(II) dithiocyanate dihydrate

M.-S. Wang, L.-Z. Cai, G.-W. Zhou, G.-C. Guo, J.-G. Mao and J.-S. Huang

Abstract: Reaction of pyrazine-2,3-dicarboxylic acid, NaOH, KSCN and Cu(NO₃)₂·3H₂O led to the formation of Na₂K₂[trans-Cu(C₆H₂N₂O₄)₂](SCN)₂·2H₂O, in which the Cu^II atom, on an inversion centre, is approximately in a square-planar environment. This is a new coordination geometry for copper in complexes of pyrazine-2,3-dicarboxylate.

Online 31 March 2003

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