Hydrothermal syntheses and crystal structure of a novel one-dimensional Pb(II) coordination polymer with chenodeoxycholic acid ligand

A novel 1D chain-like coordination polymer, {[Pb(CDCA)₂(DMF)] · DMF · 2H₂O]} _n (I) (HCDCA = chenodeoxycholic acid, DMF = dimethyl formamide), has been synthesized by hydrothermal method and characterized by single crystal X-ray diffraction, IR spectroscopy, and elemental analysis (CIF file CCDC no. 996098). X-ray diffraction analyses indicated that I displays distorted octahedral metal centers with secondary building units [Pb(CDCA)₂(DMF)] bridged by a pair of μ²-COO^?-bridges. In the crystal, interchain O-H?O hydrogen bonds are present and assemble the neighboring 1D chain into a (4,4) sql type three-dimensional (3D) supramolecular topological network.