Acta Cryst. (2008). E64, m620  [ doi:10.1107/S1600536808008660 ]

Tetraaquabis(biuret-²O,O')gadolinium(III) trichloride

W. T. A. Harrison

Abstract: In the title compound, [Gd(C₂H₅N₃O₂)₂(H₂O)₄]Cl₃, which is isostrucutural with its yttrium analogue, the Gd³⁺ ion (site symmetry 2) is bonded to eight O atoms (arising from two O,O'-bidentate biuret molecules and four water molecules) in a distorted square-antiprismatic arrangement. A network of N-HO, N-HCl and O-HCl hydrogen bonds helps to establish the packing, leading to a three-dimensional network. One of the chloride ions has site symmetry 2.

Online 2 April 2008

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