Acta Cryst. (2005). E61, m491-m493  [ doi:10.1107/S1600536805003806 ]

catena-Poly[N-methylpiperazinium(2+) [[bis(oxalato-²O,O')zirconate(IV)]-₂-oxalato-⁴O,O':O'',O''']]

Y.-L. Fu, J.-L. Ren and S. W. Ng

Abstract: The Zr atom in the title compound, {(C₅H₁₁N₂)[Zr(C₂O₄)₃]}_n, is chelated by four oxalate groups in a square-antiprismatic geometry. Bridging by one of the three oxalate groups in the asymmetric unit gives rises to a helical tris(oxalato)zirconate chain that propagates along the b axis of the unit cell. The dications surround the chains and are tightly hydrogen bonded to them, resulting in a three-dimensional network.

Online 12 February 2005

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