Syntheses, Structures and Photoluminescent Properties of Two 3D Coordination Polymers Based on a Flexible and Angular Organic Aromatic Multi-carboxylate Ligand

Two coordination polymers with 3D supramolecular network, {[Zn(L)(bpa)(0.5)(H2O)(2)]center dot 2.25H(2)O}(n) (1) and {[Cd(L)(H2O)]2H(2)Omicron}(n) (2) (H3LCl=5-(4-hydroxypyridinium-1-ylmethyl) isophthalic acid chloride, bpa=1,2-bis (4-pyridyl)ethane) were hydrothermally synthesized and structurally characterized by X-ray diffraction analyses and further characterized by infrared spectra (IR), elemental analyses, and thermogravimetric (TG) analyses. Compound 1 exhibits a ladder-like chain structure, and such chains are further united together to generate a 3D supramolecular structure through the hydrogen bonding interactions. Compound 2 possesses a 2D coordination network with a 1D channel that run parallel to the coordination layers. Meanwhile, their luminescent properties have also been investigated in detail. CCDC: 908522, 1; 908526, 2.