机构地区: 广西民族大学
出 处: 《无机化学学报》 2012年第1期195-200,共6页
摘 要: 合成了1个铜配位聚合物{[Cu2(Imazameth)2(bipy)](ClO4).CH2OH.H2O}n(1,Imazameth=(+/-2-(4-异丙基-4-甲基-5-氧-2-咪唑啉-2-基)-5-甲基烟酸,又称甲基咪草烟;bipy=4,4′-联吡啶)。并对其进行了元素分析,IR,荧光性质和X射线-单晶衍射表征。晶体结构表明:配合物1属于单斜晶系,P21/c空间群并且其不对称单元中包含水和乙醇分子。配合物1是由桥联配体4,4′-联吡啶和甲基咪草烟连接成"瓦楞"形层状结构,并通过分子内N-H…O氢键和分子间O-H…O氢键拓展成三维超分子结构。配合物1有较强的荧光性质。 A metal-organic coordination polymer framework formulated as {[Cu2(Imazameth)2(bipy)](ClO4)· CH2OH· H2O}n (1) (where Imazameth=(+/-)2-(4,5-Dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)-5-methyl-3- pyridinecarboxylic acid, bipy =4,4'-bipyridine) has been prepared and characterized by spectral method (IR), elemental analysis, fluorescence properties and single crystal X-ray diffraction techniques. It crystallizes in theMonoclinic system, space group P21/c and the asymmetric unit contains hydrogen-bonded water and alcohol molecules. The Cu atom is five-coordinated by three N atoms and two 0 atoms in distorted pyramid coordination geometry. In fact, it is a new two-dimensional copper complex with the peculiarity of having the 4,4'-bipyridine ligand and Imazameth ligand acting as bridge to form "corrugated" layered structure. Intramolecular N-H… O and intermolecular O-H…O hydrogen bonds result in the formation of a supermolecular crystal, in which they seem to be effective in the stabilization of the structure. The complex displays strong fluorescence property. CCDC: 756106.