论文部分内容阅读
选用对氨基苯甲酸(p-aminobenzoic acid,C7H7NO2)为配体,分别与Co(NO3)2·6H2O和CuCl2·2H2O在溶液中反应制备配合物。在与硝酸钴的反应中,对氨基苯甲酸的两个配位基团氨基和羧基都参与了和Co(II)离子的配位,形成一维链状结构,这些一维链又通过氢键连接形成具有二维网状结构的配位聚合物([Co(4-NH2-C6H4-COO)2(H2O)2]n·nH2O,1);然而在对氨基苯甲酸与氯化铜的反应中,只有氨基参与了配位,形成了简单配合物([Cu(4-NH2-C6H4-COOH)2Cl2],2)。用元素分析、FTIR和X-射线单晶衍射进行表征,结果表明配合物1和2都属于三斜晶系,空间群Pī。
The complex was prepared by the reaction of p-aminobenzoic acid (C7H7NO2) with Co (NO3) 2 · 6H2O and CuCl2 · 2H2O in solution respectively. In the reaction with cobalt nitrate, the amino and carboxyl groups of the two coordination groups of para-aminobenzoic acid all participate in the coordination with Co (II) ions to form a one-dimensional chain structure, and these one- ([Co (4-NH 2 -C 6 H 4 -COO) 2 (H 2 O) 2] n · nH 2 O, 1) having a two-dimensional network structure is formed; however, in the reaction of p-aminobenzoic acid with cupric chloride , Only the amino groups participate in the coordination to form a simple complex ([Cu (4-NH2-C6H4-COOH) 2Cl2], 2). Characterization by elemental analysis, FTIR and single crystal X-ray diffraction showed that both complexes 1 and 2 belong to triclinic system with space group Pī.