Syntheses,characterization Of Complexes Based On Aromatic Tetracarboxylic Acid

The complexes based on Aromatic carboxylic acid ligands,due to its novel structure and the potential application in drug delivery,molecular recognition,gas adsorption and so on have attracted the attention of more and more people.Hydrothermal reactions of terphenyl-3,3"5,5"-tetracarboxylic acid and different metal salt synthesized seventeen complexes,and were characterized by X-ray diffraction,IR spectroscopy,the powder X-ray diffraction,and elemental analysis.The complexes 1,8,12 and 14 have been determined by fluorescence spectrum,the complexes 2,3,5,6,7,9,and 10 have been investigated magnetic properties.Complex 1 exhibits efficient fluorescence quenching behavior upon addition of NP,the complex 8 shows better fluorescence quenching behavior in NT and complex 14 shows better fluorescence quenching behavior in NA.The formulas of 1～17 are as follows:[Cd（tptc）_0.5（4,4’-bibp）]n（1）{[Co（tptc）_0.5（4,4’-bibp）]·（H₂O）·（Cyc）}n（2）{[Ni（tptc）_0.5（4,4’-bibp）]·（H₂O）·（Cyc）}n（3）{[Ni（tptc）_0.5（4,4’-bibp）（H₂O）2]·6（H₂O）}n（4）{[Co（tptc）_0.5（4,4,-bibp）]·(H₂O}（4,4’-bibp）0.5}n（5）{[Co（tptc）_0.5[（1,4-bib）]·（H₂O）·（DMF）}n（6）{[Mn（tptc）_0.5（1,4-bbimb）]·2（H₂O）}｝n（7）[Zn（tptc）_0.5（1,2-bimb）]n（8）{[Cu₂（tptc）（1,2-bimb）2]·4.5（H₂O）}n（9）[CO2（tptc）（1,2-bimb）（H2）)2]n（10）{[Ni（tptc）_0.5（1,2-bimb）]（H₂O）]·（H₂O）}n（11）{[Zn2（tptc）（1,4-bimb）2]·（H₂O）}n（12）[Cu（tptc）_0.5（1,3-bimb）]n（13）{[Zn3（Htptc）2（phen）2]·1.5H₂O}n（14）{[Eu2（tptc）1.5（H₂O）4]·2（H₂O）·2（1,4-DOX）}n（15）{[Ce（tptc）（H₂O）4]·0.5（H₂O）·0.5（1,4-DOX）}n（16）{[Pr（tptc）（H₂O）5]·（H₂O）·0.5（1,4-DOX）}n（17）The single-crystal X-ray diffraction analysis shows that that compounds 4,9,10,11,13,14,and 16 are 2D layer framework,complexes 4 and 11 of chains of for the 2 D structure,complexes 11 expand into 3 D network through hydrogen bond;Complexes 9,10,13,and 14 structure the two-dimensional surface with the main ligand and auxiliary ligand as the decoration.Complexe 9 consists of the Schlafli symbol of sql and 13 have the kgm topological.Complexe 10 contains a large amount of hydrogen bond,hydrogen bond make the structure more stable,complexe 16 has extended into 3 D network structure through hydrogen bond,the complexe 14 expanded into 3D network structure through the π...πinteractions.Complexes 1,2,3,5,6,7,8,12 and 15 are 3D structure and the complexes 1,2,3,5,6 and 7 have the same 3D the topology structure,complexes 8 and 12 are 4,4-connected 3D structure,complexe 15 are 4,4,12-connected 3D network.Complexe 17 is 1D chain and expanded into 3D network through the hydrogen bond interaction.