Acta Cryst. (2001). E57, m380-m381  [ doi:10.1107/S1600536801011333 ]

Bis(pyridine-2,4-dicarboxylato)copper(II) dihydrate

Y.-C. Liang, M.-C. Hong, R. Cao and Q. Shi

Abstract: A mononuclear copper(II) coordination complex, [Cu(Hpydc)₂]·2H₂O (pydc = 2,4-pyridinedicarboxylate, C₇H₄NO₄), has been prepared from the hydrothermal reaction of CuO and H₂pydc in H₂O. The complex consists of discrete [Cu(Hpydc)₂] and two uncoordinated water molecules, the copper(II) displaying a typical planar four-coordinate geometry. All Cu-O and Cu-N distances range from 1.945 (2) to 1.975 (2) Å. The discrete structure is further extended into a three-dimensional structure by weak hydrogen bonds.

Online 31 July 2001

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