Synthesis and crystal structures of 1,2-diaminobenzene-Ni complexes

Treatment in different proportions of 1,2-diaminobenzene with Ni(OAc)(2) center dot 4H(2)O in methanol results in the formation of two 1,2-diaminobenzene-Ni complexes (C92H134N24Ni9O28) and (C16H22N4NiO4). Their structures were determined by X-ray diffraction analysis. The complexes are also characterized by elemental analysis and IR.