Synthesis, Structure and Characterization of Novel 3D Metal-organic Coordination Polymers: [M6(TDC)6(hmt)2(DMF)6(H2O)3•(H2O)] (M = Cd, Mn)

Two metal-organic coordination polymers [M-6(TDC)(6)(hmt)(2)(DMF)(6)(H2O)(3)center dot(H2O)] (JUC-85a and JUC-85b) (M = Cd, Mn, TDC = thiophene-2,5-dicarboxylic, hmt = hexamethylenetetramine, DMF = N,N-dimethylfonnamide and JUC = Jilin University, China) were synthesized by self-assembly of mixed ligands and corresponding transition metal salts under mild conditions, and characterized by single-crystal X-ray diffraction, elements analysis, TGA, topology analysis, powder XRD and photoluminescent. X-ray crystallography reveals that JUC-85a and JUC-85b exhibit the same three-dimensional structure with a rare "loh1" type of (3,6)-connected networks. In addition, photoluminescent of JUC-85a was characterized.