X-ray single-crystal structure of a novel di-μ-chloro-bis[chloro(2,9-dimethyl-1,10-phenanthroline)nickel(II)] complex: synthesis, and spectral and thermal studies

A binuclear nickel(II) chloride complex with dimethyl-1,10-phenanthroline, di-mu-chloro-bis[chloro(2,9-dimethyl-1,10-phenanthroline)nickel(II)] dimer, has been prepared and its molecular structure determined by X-ray diffraction. The crystal is triclinic, space group P-1, with the Ni(II) in [NiCl2(C14H12N2)](2) coordinated to two N of the phen ligand and three Cl-, one terminal and two bridging. A center of inversion lies midway between two Ni(II). Overall Ni(II) coordination is distorted triangular bipyramidal. The dimer complex was also characterized by elemental analysis, FAB-MS, IR and UV-visible spectroscopy, and thermogravimetric analysis.