含氟二羧酸和含氮配体与过渡金属(Ⅱ)配合物的合成、表征及晶体结构

Fluorinated Dicarboxylic Acids and Transition-metal(Ⅱ) Complexes with N-ligands: Synthesis, Characterizations and Crystal Structures

水热法合成了5个新的配位聚合物:[Cd(TFSA)(2,2'-bpy)2]n(1),[Mn(HFGA)(phen)2]n(2),[Co(TFSA)(bpp)2(H2O)2]n(3),[Zn(TFSA)(bpp)2(H2O)2]n(4)和[Cu(HFGA)(phen)]n(5)(TFSA=四氟丁二酸,HFGA=六氟戊二酸,2,2'-bpy=2,2'-联吡啶,phen=1,10-邻菲啰啉,bpp=1,3-二吡啶基丙烷),通过X射线单晶衍射确定了配合物的晶体结构.配合物1和2具有相似的1D链结构,四氟丁二酸和六氟戊二酸以两个单齿羧基氧原子分别配位于Cd2+和Mn2+离子,2,2'-联吡啶和1,10-邻菲啰啉分别螯合配位于Cd2+和Mn2+离子.配合物3和4具有相似的1D链结构,1,3-二吡啶基丙烷以两个端基氮原子桥联金属离子,四氟丁二酸和六氟戊二酸分别以单齿方式配位.配合物5是具有{4.82}拓扑的2D网结构,六氟丁二酸配体通过单齿/双齿-桥联模式连接Cu2+离子.5个配合物均通过分子间弱作用进一步构筑成3D超分子结构.

Five new coordination polymers [Cd（TFSA）（2,2＇-bpy）2]n （1）, [Mn（HFGA）（phen）2],, （2）, [Co（TFSA）（bpp）2（H20）2]n （3）, [Zn（TFSA）（bpp）2（H20）2]n （4） and [Cu（HFGA）（phen）]n （5） （TFSA=tetrafluo- rosuccinate, HFGA=hexafluoroglutarate, 2,2＇-bpy=2,2＇-bipyridine, phen= 1,10-phenanthroline, bpp= 1,3-bis（4-pyridyl）propane） have been synthesized and structurally characterized by X-ray single crystal diffraction. The complexes 1 and 2 have similar 1D chain structures, in which adjacent Cd^2＋ and Mn^2＋ ions are linked by TFSA and HFGA ligands using its two monodentate carboxylate groups, while 2,2＇-bipy and phen act as terminal ligands to chelate the Cd^2＋ and Mn^2＋ ion, respectively. The complexes 3 and 4 have similar 1D chain structures, in which adjacent metal ions Co^2＋ or Zn^2＋ are linked by bpp ligands using its two N atoms, while TFSA and HFGA act as terminal ligands using one carboxylate oxygen atom to coordinate the metal（II） ion. Complex 5 has a 2D network structure with the topology of {4.82}, in which the neighbouring Cu^2＋ ions are connected through HFGA ligands using a monodantate/bidentate-bridging mode. All of five complexes are further connected by hydrogen bonds and n-n stacking interactions into 3D supramolecular structures.