Acta Cryst. (2009). E65, m429-m430  [ doi:10.1107/S1600536809009489 ]

Poly[octa--aqua-tetraaquabis(₄-5-sulfonatobenzene-1,3-dicarboxylato)nickel(II)tetrasodium]

B.-Y. Zhang, J.-J. Nie and D.-J. Xu

Abstract: In the crystal structure of the title compound, [Na₄Ni(C₈H₃O₇S)₂(H₂O)₁₂]_n, the Ni^II cation occupies an inversion centre and is coordinated by the carboxyl groups of the sulfoisophthalate trianions and water molecules in a distorted octahedral geometry. Two independent Na^I atoms are connected by the carboxyl and sulfonate groups of the sulfoisophthalate ligands anions and water molecules in a distorted octahedral geometry. The sulfoisophthalate ligands and coordinated water molecules bridge the Ni^II and Na^I cations, forming a three-dimensional polymeric structure. Weak - stacking is present between parallel benzene rings [centroid-centroid distance = 3.9349 (10) Å]. Extensive O-HO and C-HO hydrogen bonding helps to stabilize the crystal structure.

Online 25 March 2009

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