title: Crystal structure of (1,10-phenanthroline-N,N')(1,4,7,10-tetraazacyclododecane-N,N',N",N"')nickel(II) diperchlorate.
abstract: The crystal structure of the title compound, [Ni(C8H20N4)(C12H8N2)](ClO4)2, has been determined by X-ray diffraction. The Ni(II) ion is six coordinated with four nitrogen atoms of the tetradentate macrocyclic ligand and two nitrogen atoms of the bidentate ligand in a distorted octahedron geometry. The folded tetradentate macrocyclic ligand adopts a configuration having four five-membered chelate rings in distorted eclipsed conformations. The four hydrogen atoms of the amine groups of the macrocyclic ligand are on the same side towards the bidentate ligand.
authors.affiliation: Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 300, ROC.
authors.forename: Yung-Chan
authors.initials: YC
authors.lastname: Lin
authors.forename: Tian-Huey
authors.initials: TH
authors.lastname: Lu
authors.forename: Fen-Ling
authors.initials: FL
authors.lastname: Liao
authors.forename: Chung-Sun
authors.initials: CS
authors.lastname: Chung