Synthesis, characterisation and catalytic activity of 4, 5-imidazoledicarboxylate ligated Co(II) and Cd(II) metal-organic coordination complexes
作者:Kranthi Kumar Gangu、Suresh Maddila、Saratchandra Babu Mukkamala、Sreekantha B. Jonnalagadda
DOI:10.1016/j.molstruc.2017.04.083
日期:2017.9
7°]. While Co(II) in 1 exhibited a six coordination geometry with 4,5-Imdc and water molecules, Cd(II) ion in 2 showed a seven coordination with the same ligand and solvent. In both 1 and 2, the hydrogen bond interactions with mononuclear unit generated 3D-supramolecular structures. Both complexes exhibit solid state fluorescent emission at room temperature. The efficacy of both the complexes as heterogeneous
摘要 构建了两种单核配位配合物[Co(4,5-Imdc)2 (H2O)2] (1)和[Cd(4,5-Imdc)2(H2O)3]·H2O(2)使用 Co(II) 和 Cd(II) 金属盐和 4,5-咪唑二羧酸 (4,5-Imdc) 作为有机配体。1、2均通过单晶XRD结构表征,结果表明1属于P21/n空间群,晶胞参数[a = 5.0514(3) A, b = 22.5786(9) A, c = 6.5377(3 ) A, β = 111.5°] 而, 2 属于具有晶胞参数的 P21/c 空间群 [a = 6.9116(1) A, b = 17.4579(2) A, c = 13.8941(2) A, β = 97.7 °]。虽然 1 中的 Co(II) 显示出具有 4,5-Imdc 和水分子的六配位几何结构,但 2 中的 Cd(II) 离子显示出与相同配体和溶剂的七次配位。在 1 和 2 中,与单核单元的氢键相互作用产生了