Acta Cryst. (2010). E66, m342  [ doi:10.1107/S1600536810006872 ]

catena-Poly[[[aqua(5-nitrobenzene-1,2,3-tricarboxylato-O¹)nickel(II)]-di--aqua-[diaquasodium]-di--aqua] tetrahydrate]

Z.-D. Tan and B. Yi

Abstract: In the title complex, {[NaNi(C₉H₂NO₈)(H₂O)₇]·4H₂O}_n, the Ni^II atom has a distorted octahedral coordination, defined by five O atoms from five water molecules and one O atom from one 5-nitrobenzene-1,2,3-tricarboxylate ligand. The Na cation is coordinated by six water O atoms in an irregular trigonal-prismatic geometry. There are seven coordinated water molecules in the asymmetic unit. The Ni and Na atoms are linked by water bridges, forming infinite chains, which are connected by strong O-HO hydrogen bonds involving the coordinated and uncoordinated water molecules into a three-dimensional network.

Online 27 February 2010

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