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合成了2种新的Co(Ⅱ)的配合物{[Co(L1)2(H2O)2](Cl O4)2·4H2O}n(1)和{[Co(L2)2(H2O)4](Cl O4)2·8H2O·L2}n(2)(L1=1,1′-(4,4′-二亚甲基联苯)二(1-吡啶鎓-3-羧酸盐),L2=1,1′-(4,4′-二亚甲基联苯)二(1-吡啶鎓-4-羧酸盐)),并且分别用红外光谱、热差分析、X射线粉末衍射和X射线单晶衍射表征了这两种化合物。晶体结构分析表明L1,L2,1和2分别属于P21/c,P21/c,P1和P1空间群。化合物1中的Co(Ⅱ)与L1配位形成二维的配位聚合物,2中的Co(Ⅱ)与L2配位形成独立的阳离子。二者的晶体结构都含有大量的氢键作用或者配位键形成的孔状结构。此外,磁性研究表明,1和2中都存在反铁磁性相互作用。
Two new complexes of Co (Ⅱ) {{Co (L1) 2 (H2O) 2] (ClO4) 2.4H2O} n (1) and {[Co (L2) 2 (H2O) 4] (ClO4) 2 · 8H2O · L2} n (2) (L1 = 1,1 ’- (4,4’-dimethylenebiphenyl) bis = 1,1 ’- (4,4’-dimethylenebiphenyl) bis (1-pyridinium-4-carboxylate)) and analyzed by infrared spectroscopy, thermal differential analysis, X-ray powder diffraction and X Ray single crystal diffraction characterizes these two compounds. Crystal structure analysis showed that L1, L2, 1 and 2 belong to the P21 / c, P21 / c, P1 and P1 space groups, respectively. Co (Ⅱ) in compound 1 coordinated with L1 to form a two-dimensional coordination polymer, and Co (Ⅱ) in 2 coordinated with L2 to form an independent cation. The crystal structure of both contain a large number of hydrogen bonding or coordination hole formed by the porous structure. In addition, magnetic studies show that there are antiferromagnetic interactions in both 1 and 2.