title: catena-Poly[copper(I)-bis-[μ-3-(1H-imidazol-2-yl)pyridine]-copper(I)-di-μ-iodido].
abstract: The title polymeric compound, [Cu(2)I(2)(C(8)H(7)N(3))(2)](n) [C(8)H(7)N(3) = 3-(1H-imidazol-2-yl)pyridine (HIPy), where HIPy comes from the in situ deca-rboxylation of 2-(pyridin-3-yl)-1H-imidazole-4,5-dicarb-oxy-lic acid (H(3)PyIDC)], was obtained under solvo-thermal conditions. Each Cu(I) cation is in a distorted tetra-hedral coordination environment defined by two iodide anions and two nitro-gen atoms from two individual HIPy ligands. Two Cu(I) atoms are connected by two HIPy ligands to form a dimer and these dimers are further bridged through the iodide atoms, leading to a chain structure extending parallel to [100]. Moreover, inter-molecular N-H⋯I hydrogen bonds and weak π-π stacking inter-actions [centroid⋯centroid distances of 3.809 (4) Å, an inter-planar separation of 3.345 (3) Å and a ring slippage of 1.822 Å] between pyridyl rings link the chains into a two-dimensional supra-molecular network in the ac plane.
authors: School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China, and, South China Normal University, Key Laboratory of Technology in Electrochemical Energy Storage and Power Generation in Guangdong Universities, Guangzhou 510006,  People's Republic of China.
authors: Qing-Guang
authors: QG
authors: Zhan