Abstract
The title compound, [Ni(C3H4N2)5(H2O)](C4H2Br2O4), consists of NiII complex cations and dibromosuccinate anions. The Ni atom, water O atom and one imidazole N atom of the complex cation lie on a twofold axis. The anion lies on an inversion centre. The crystal packing is reinforced by O—H⋯O and N—H⋯O hydrogen bonds, but there are no π–π stacking interactions even though the complex contains five aromatic imidazole rings. The compound is isostructural with its cobalt analogue.
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