title: Synthesis, crystal structures and luminescent properties of two one-dimensional cadmium(II) coordination polymers generated from polydentate Schiff-base ligand.
abstract: Two new one-dimensional coordination polymers {[CdL(2)(H(2)O)(2)](NO(3))(2)(H(2)O)(6)}(n) (1) and {[CdLI(2)](H(2)O)(CH(3)OH)}(n) (2) have been synthesized and characterized by IR, elemental analysis, TG technique, XRPD and complete single crystal structure analyses, where L is bis(pyridin-4-ylmethylene)biphenyl-2,2'-dicarbohydrazide. The Cd(II) atom has a distorted octahedral coordination geometry with N(4)O(2) donors from four ligands and two water molecules in 1 and a distorted tetrahedral coordination geometry with NOI(2) donors from two ligands and two I(-) anions in 2, respectively. Polymer 1 shows a 1D framework structure containing bimetallic 42-membered quadrangular ring units. The adjacent 1D chains are interacted forming a 3D supramolecular network structure through multiform hydrogen bond interactions. In comparison with 1, polymer 2 is a new rampart-type chain and each chain is interacted with each other through hydrogen bond interactions to lead a 2D layer. The luminescent properties of the polymers 1 and 2 were investigated in the solid state at room temperature.
authors: Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China.
authors: Yan
authors: Y
authors: Bai
authors: Jun-Li
authors: JL
authors: Wang
authors: Dong-Bin
authors: DB
authors: Dang
authors: Yan-Ning
authors: YN
authors: Zheng
mesh_terms: D002104:Cadmium / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008024:Ligands; D049449:Luminescence; D008958:Models, Molecular; D008968:Molecular Conformation; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D011208:Powders; D012545:Schiff Bases / Q000138:chemical synthesis* / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013696:Temperature
chemical_list: D056831:Coordination Complexes; D008024:Ligands; D011108:Polymers; D011208:Powders; D012545:Schiff Bases; D002104:Cadmium