Acta Cryst. (2005). E61, m525-m527  [ doi:10.1107/S1600536805004393 ]

Diaquabis(biuretato-²O,O')nickel(II) dichloride

J. Lawson and W. T. A. Harrison

Abstract: The title compound, [Ni(C₂H₅N₃O₂)₂(H₂O)₂]Cl₂, contains Ni²⁺ cations octahedrally coordinated by two bidentate biuret molecules in an O,O'-bidentate coordination mode and two water molecules, the latter in a trans configuration. Two chloride anions provide charge compensation. Numerous N-HO (mean HO = 2.17  Å, mean N-HO = 164° and mean NO = 2.991  Å), N-HCl (mean HCl = 2.46  Å, mean N-HCl = 162° and mean NCl = 3.278  Å) and O-HCl (mean HCl = 2.19  Å, mean O-HCl = 159° and mean OCl = 3.068  Å) hydrogen bonds help to stabilize the crystal packing.

Online 12 February 2005

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