(IUCr) Crystallography Journals Online

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Acta Cryst. (2007). E63, m1517-m1518 [ doi:10.1107/S160053680702051X ]

Hexaaquahexakis(₂-3,5-diamino-1,2,4-triazole)trinickel(II) trisulfate octadecahydrate

G.-F. Zhang, S.-M. Zhao, J.-B. She and S. W. Ng

Abstract: In the centrosymmetric trinuclear cation of the title compound, [Ni₃(C₂H₅N₅)₆(H₂O)₆](SO₄)₃·18H₂O, the six 3,5-diamino-1,2,4-triazole ligands each bridge two metal atoms; the Ni atom in the centre (site symmetry 3 2) of the cluster is coordinated by six N atoms in an octahedral geometry. The other metal atom (site symmetry 3) is connected to three N atoms and three O atoms. The sulfate anion on the $\\overline{3}$ site is heavily disordered whereas that on the 3 site is ordered. The hexacation, dianions and uncoordinated water molecules interact through numerous O-HO and N-HO hydrogen bonds, forming a three-dimensional network.

Online 30 April 2007

Hexaaquahexakis(2-3,5-diamino-1,2,4-triazole)trinickel(II) trisulfate octadecahydrate

G.-F. Zhang, S.-M. Zhao, J.-B. She and S. W. Ng

Hexaaquahexakis(₂-3,5-diamino-1,2,4-triazole)trinickel(II) trisulfate octadecahydrate