Acta Cryst. (2009). E65, m40  [ doi:10.1107/S1600536808041433 ]

-Nitrilotriacetato-tris(1,10-phenanthroline)dizinc(II) nitrate hexahydrate

L. F. Chin, C. H. Ng and S. W. Ng

Abstract: The nitrilotriacetate trianion in the title compound, [Zn₂(C₆H₆NO₆)(C₁₂H₈N₂)₃]NO₃·6H₂O, is engaged in N,O,O',O"-chelation to the phenanthroline-chelated Zn^II unit, giving a distorted octahedral geometry for the metal atom. One of the three O atoms of the trianion that is engaged in chelation also binds to the bis(phenanthroline)-chelated Zn^II unit, whose five-coordinate geometry is distorted owing to a long ZnO interaction [2.401 (2) Å]. The dinuclear cations, nitrate anions and uncoordinated water molecules are linked into a three-dimensional network via O-HO hydrogen bonds between water molecules and carboxylate O atoms.

Online 10 December 2008

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