论文部分内容阅读
在水热反应条件下FeCl2·6H2O、2,4,6-吡啶三羧酸(H3pyta)和NaOH反应合成了1种一维链状铁配位聚合物[Fe3(pyta)2(H2O)8](1);同样条件下Ni(OAc)2·4H2O、2,4,6-吡啶三羧酸(H3pyta)、NaOH和4-氨基-3,5-二(4-吡啶基)-1,2,4-三氮唑(abpt)反应合成了1种二维网状镍配合物[Ni3(pyta)2(abpt)2(H2O)3]·2H2O(2)。通过元素分析和红外光谱对这2个配位聚合物进行了表征。单晶结构表明:配合物1的晶体属于单斜晶系,Cc空间群;配合物2的晶体属于单斜晶系,P21/c空间群。在配合物1中,pyta3-配体采取μ2-和μ4-pyta3-2种桥连模式将Fe原子连成了沿c轴方向延伸的Fe-pyta链。而在配合物2中,pyta3-配体仅采取μ2-桥连模式将Ni原子连成线型三核[Ni3(pyta)2]单元,这些三核单元进一步通过abpt辅助配体桥连成二维(4,4)层状结构。
One kind of one-dimensional chain-like iron coordination polymer [Fe3 (pyta) 2 (H2O) 8] was synthesized by the reaction of FeCl2 · 6H2O, 2,4pyridine tricarboxylic acid (H3pyta) and NaOH under hydrothermal conditions. (1). Under the same conditions, Ni (OAc) 2.4H2O, 2,4,6-pyridinetricarboxylic acid (H3pyta), NaOH and 4-amino-3,5-bis , Ni (2) 2 (abt) 2 (H 2 O) 3] · 2H 2 O (2) was synthesized by the reaction of 4-triazole and abpt. The two coordination polymers were characterized by elemental analysis and infrared spectroscopy. The single crystal structure shows that the crystal of complex 1 belongs to the monoclinic Cc space group and the crystal of the complex 2 belongs to the monoclinic space group P21 / c. In complex 1, the pyta3-ligand adopts the bridging mode of μ2- and μ4-pyta3-2 to connect the Fe atom to the Fe-pyta chain extending in the c-axis direction. In complex 2, however, the pyta3-ligand takes only the μ2-bridging mode to link the Ni atoms to the linear trinuclear [Ni3 (pyta) 2] units, which are further bridged by abpt ancillary ligands into two Dimensional (4,4) layered structure.