Acta Cryst. (2007). E63, m1651  [ doi:10.1107/S1600536807022702 ]

Diaquabis[5-(pyrazin-2-yl)-5H-tetrazolato-²N,N']copper(II) monohydrate

J.-T. Liu, S.-D. Fan and S. W. Ng

Abstract: The Cu^II atom in the title compound, [Cu(C₅H₃N₆)₂(H₂O)₂]·H₂O, is chelated by two pyrazinyltetrazolate ligands and, in addition, coordinated by two water molecules in a tetragonally elongated octahedral geometry [Cu-N = 1.990 (2) and 2.056 (2) Å, and Cu-O = 2.445 (2) Å]. The Cu^II atom lies on a center of inversion. In the crystal structure, molecules are linked by O-HO and O-HN hydrogen bonds into a three-dimensional network. The free water molecule is disordered about a twofold axis.

Online 23 May 2007

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