Metal-induced Coordination Networks Using a C2v-based Hexacarboxylate Ligand: Syntheses, Structures and Properties

摘要

Metal-organic frameworks (MOFs),consisting of metal,anion and organic ligands,have attracted much attention.The structure of MOFs is affected by various factors.To explore the effects of metal ions,we synthesized six complexes,namely { [Me2NH2][Zn4(H2L)(L)]· 2H2O·2DMF}n (1),{[Me2NH2]2[Cd2(L)]·2H2O}n (2),{[Me2NH2]2[Ca3(L)(μ-OH)2(DMF)2]·2H2O}n (3) and {[Me2NH2]2[M2(L)(μ-OH)]·2H2O·2DMF}n (M =Co,4;Ni,5;Mn,6),from a C2v-based hexacarboxylate ligand ([1,1';4',1 "]terphenyl-3,5,2',5',3",5 "-hexacarboxylic acid (H6L)) using metal-induced strategy.These MOFs were thoroughly characterized by single-crystal and X-ray diffraction,elemental analysis,Fourier-transform infrared spectra (FTIR) and photoluminescence.