Abstract
The crystal structure of the title compound, [Ni(C4H4O4)(C7H6N2)2(H2O)2]n, consists of a polymeric NiII complex bridged by succinate dianions. The Ni atom is located at a crystallographic inversion center. Both carboxyl groups of the succinate coordinate, in monodentate fashion, to the neighboring NiII atoms to form one-dimensional chains, and the chains link to each other via hydrogen bonds between the benzimidazole and carboxyl group to form a two-dimensional supramolecular structure. The overlapped arrangement of parallel benzimidazole ligands, with a separation of 3.350 (3) A, suggests the existence of π–π-stacking interactions between adjacent chains.
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