Crystal structure of poly[aqua[μ-1,1′-(9,9-dimethyl-9H-fluoren-2,7-diyl)di-1H-imidazole](μ-naphthalene-1,4-dicarboxylato)nickel(II)]

In the title compound, [Ni(C12H6O4)(C21H18N4)(H2O)]n, the NiII cation is coordinated by three carboxylate O atoms of two naphthalene-1,4-dicarboxylate anions, one water molecule and two N atoms of two 1,1′-(9,9-dimethyl-9H-fluoren-2,7-diyl)di-1H-imidazole (DFDI) ligands, giving rise to a slightly distorted octahedral geometry. The NiII ions are linked by the DFDI ligands into chains, which are further connected by the carboxylate anions into double chains that elongate in the the b-axis direction. These double chains are linked by centrosymmetric pairs of O—H...O hydrogen bonds into layers parallel to (10-1). The asymmetric unit consists of one crystallographically independent NiII cation, one carboxylate and one DFDI ligand, as well as of one water molecule, all of them located in general positions.

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