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采用水热合成法,用NiCl.26H2O和H2DPC合成了Ni(2,6-PDC).23H2O配位聚合物,并对其进行了元素分析和单晶X射线衍射结构测定。该配位聚合物结构属于单斜晶系,空间群为P2(1)/c。晶胞参数为:a=13.680(3)(A觷),b=10.045(2)(A觷),c=13.777(3)(A觷),β=115.20(3)°,γ=90.00°,Volume=1713.0(6)A觷3,Z=4,F(000)=880,Mr=442.71。在化合物结构中,镍为六配位结构,其中两个N和四个羧基氧分别来自于两个2,6-吡啶二甲酸。由于分子中的苯环间存在π键作用,化合物连接为二维结构。又由于分子中存在大量的氢键,使化合物拓展为三维结构。
Ni (2,6-PDC) .23H2O coordination polymer was synthesized by hydrothermal method with NiCl.26H2O and H2DPC, and its elemental analysis and single crystal X-ray diffraction structure determination were carried out. The coordination polymer belongs to the monoclinic system with space group P2 (1) / c. The unit cell parameters are: a = 13.680 (A), b = 10.045 (A), c = 13.777 (A), β = 115.20 , Volume = 1713.0 (6) A 觷 3, Z = 4, F (000) = 880, Mr = 442.71. In the compound structure, nickel is a hexacoordinate structure, in which two N and four carboxy oxygen are derived from two 2,6-pyridinedicarboxylic acids, respectively. Due to the π-bond between the benzene rings in the molecule, the compounds are connected in a two-dimensional structure. Due to the existence of a large number of hydrogen bonds in the molecule, the compound is expanded into a three-dimensional structure.