Acta Cryst. (2005). E61, m673-m676  [ doi:10.1107/S1600536805006896 ]

[-5,11-Bis(dimethylethyleneamino)-2,8-dimethyl-1,4,5,6,7,10,11,12-octahydroimidazo[4,5-h]imidazo[4,5-c][1,6]diazecine]bis[aquasulfatocopper(II)] hexahydrate: a dinuclear copper sulfate complex based on a diazecine ligand

L. Gasque, E. Mijangos and L. Ortiz-Frade

Abstract: In the title compound, [Cu₂(SO₄)₂(C₂₀H₃₆N₈)(H₂O)₂]·6H₂O, the dinuclear molecule lies across an inversion centre and contains square-pyramidal Cu^II ions separated by 7.5709  (18)  Å. Symmetry-related molecules are linked together by hydrogen bonds between the coordinated water molecules and the sulfate ligands. They are further linked by a framework of fused cyclic water tetrameric and pseudo-hexagonal units in a three-dimensional hydrogen-bonded network involving both coordinated and uncoordinated water molecules, as well as sulfate ligands. While the tetrameric units are purely composed of water molecules, the pseudo-hexagonal units involve O atoms from the sulfate. Further hydrogen bonding also involves the NH group from the imidazole in addition to the above-mentioned units.

Online 18 March 2005

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