Find in Library

The two unique NiII atoms of the title complex, [MnNi2(C11H8N3O6)2(H2O)4]·4H2O, have a slightly distorted square-planar coordination environment with a tetradentate N-(5-nitro-2-oxidobenzylidene)glycylglycinate Schiff base trianion. The NiII atoms are coordinated by one phenolate O atom, one imine N atom, one amido N atom and one carboxylate O atom. The MnII atom is connected via the carboxylate groups, forming a hetero-trinuclear NiII–MnII–NiII system. The MnII atom is six-coordinated in an octahedral geometry by four O atoms from two carboxylate groups and four water molecules. The NiII–MnII–NiII hetero-trinuclear molecules are stacked in the crystal and cross-linked through O—H...O hydrogen bonds.