基于5-甲氧基间苯二甲酸构筑的两个金属配位聚合物:晶体结构、荧光和催化性质（英文）

Construction of Two Coordination Polymers Based on 5-Methoxyisophthalic Acid Ligand: Structures, Luminescence and Catalytic Properties

以5-甲氧基间苯二甲酸(CH_3O-H_2ip),2,2′-二甲基-4,4′-联吡啶(dmbpy)和四水硝酸镉/六水硝酸钴为原料,在混合溶剂中合成2个一维金属有机配位聚合物,{[Cd_2(CH_3O-ip)_2(ethanol)_2(H_2O)_4]·3H_2O}_n(1)和{[Co_2(CH_3O-ip)_2(dmbpy)(H_2O)_4]·H_2O·C_2H_3N}_n(2)(C_2H_3N=乙腈)。通过元素分析、红外光谱、差热分析、X射线粉末衍射和X射线单晶衍射等手段对配合物进行了结构表征。结果显示,化合物1为一维浪形结构,通过O-H…O分子间氢键作用构筑成二维结构;而2为一维梯形结构,通过O-H…O,O-H…N和C-H…O分子间氢键作用构筑成三维结构。常温固态下,考察了配合物1的荧光性质,并考查了化合物1和2对甲基橙的催化降解活性。

Two new 1D cadmium/cobalt-based coordination polymers, {[Cd2（CH3O-ip）2（ethanol）2（H2O）4]· 3H2O}, （1） and {[Co2（CH30-ip）2（dmbpy）（H2O）4]· H2O· C2H3N}, （2） （CH30-H2ip=5-methoxyisophthalic acid, dmbpy=2,2＇-dimethyl -4,4＇-bipyridine, C2H3N=acetonitrile）, were synthesized in mixed solvent and characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis （TGA）, powder X-ray diffraction and single-crystal X-ray diffrac- tion. Both complexes are synthesized using dual linkers （CH30-H2ip and dmbpy）. Complex 1 is a wave-like chain and further connected into 2D network through O-H.--O hydrogen bonds, whereas 2 shows a ladder chain and further linked into 3D supramolecular framework by O-H… O, O-H… N and C-H… O hydrogen bonds. Further- more, the luminescence property of 1 and the catalytic degradation of methyl orange in a Fenton-like process of 1-2 are also investigated. CCDC： 1578934, 1; 1578935, 2.