title: Poly[di-μ(3)-chlorido-di-μ(2)-chlorido-{μ(4)-N,N,N',N'-tetra-kis-[(diphenyl-phosphan-yl)meth-yl]benzene-1,4-diamine-κ(4)P:P':P'':P'''}tetra-copper(II)].
abstract: In the title complex, [Cu(4)Cl(4)(C(58)H(52)N(2)P(4))](n), four Cu(II) atoms are held together via two doubly bridging and two triply bridging chlorides, forming a stair-like Cu(4)Cl(4) core having crystallographically imposed inversion symmetry, while the benzene-1,4-diamine ligand (with a crystallographic inversion center at the centroid) acts in a tetra-dentate coordination mode, bridging two adjacent Cu(4)Cl(4) cores, resulting in a chain along the a-axis direction. One Cu atom has a distorted tetra-hedral geometry, coordinated by one P atom, one μ(2)-Cl and two μ(3)-Cl atoms, while the second Cu atom adopts a trigonal geometry, coordinated by one P atom, one μ(2)-Cl and one μ(3)-Cl atoms.
authors.affiliation: School of Physics and Chemistry, Xihua University, Chengdu 610039,  People's Republic of China.
authors.forename: Jia-Qin
authors.initials: JQ
authors.lastname: Liu
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ya-Jing
authors.initials: YJ
authors.lastname: Lü
authors.forename: Zhen-Jü
authors.initials: ZJ
authors.lastname: Jiang