Acta Cryst. (2007). E63, m2943-m2944  [ doi:10.1107/S160053680705578X ]

catena-Poly[[-5,5'-iminoditetrazolato-³N,N':N''-bis[triaquazinc(II)]] bis[[triaquazinc(II)]--5,5'-iminoditetrazolato-³N,N':N''] dihydrate]

Z.-Q. Liu, W. Dong and S. W. Ng

Abstract: The title compound, {[Zn₂(C₂HN₉)₂(H₂O)₆][Zn₂(C₂HN₉)₂(H₂O)₆]·2H₂O}_n, consists of one dinuclear [Zn(C₂HN₉)(H₂O)₃]₂ molecule, in which the two C₂HN₉^- monoanions each N,N'-chelate a [Zn(H₂O)₃] unit while using a third N atom to bind to the other triaquazinc unit. In the second [Zn(C₂HN₉)(H₂O)₃] unit, the monoanion similarly N,N'-chelates a triaquazinc unit, but the bridging interaction furnishes a zigzag chain structure. For both Zn centres, a mer-ZnN₃O₃ octahedral coordination arises. A network of N-HN, O-HN and O-HO hydrogen bonds helps to establish the structure.

Online 9 November 2007

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