基于柔性双(甲基苯并咪唑)和羧酸配体的Cd(Ⅱ)/Co(Ⅱ)/Zn(Ⅱ)配合物的合成和表征（英文）

Syntheses, Characterization and Crystal Structures of Cd(Ⅱ)/Co(Ⅱ)/Zn(Ⅱ) Complexes Based on Flexible Bis(methylbenzimidazole) and Carboxylate Ligands

通过水热或溶剂热合成的方法制备了3个Cd(Ⅱ)/Co(Ⅱ)/Zn(Ⅱ)配位聚合物[Cd(hbmb)0.5(pta)]n(1),[Co(hbmb)(1,4-bdc)]n(2)和{[Zn2(hbmb)1.5(bptc)(H2O)]·0.5hbmb·3H2O}n(3)(hbmb=1,1′-(1,6-己烷)双-(2-甲基苯并咪唑),H2pta=邻羧基苯乙酸,1,4-H2bdc=1,4-苯二乙酸, H4bptc=3,3′,4,4′-二苯甲酮四羧酸))。单晶结构解析表明配合物1是一个4-连接的二维平面网络,拓扑符号为(44·62)。配合物2是一个4-连接的二维褶皱网络,拓扑符号为(42·6)(42·63·8)。配合物3是一个(3,4,4)-连接的三重穿插网络,拓扑符号为(42·62·82)(4·62)(4·64·8)。其中配合物1属于单斜晶系,空间群为P21/c,a=0.758 32(15) nm,b=1.452 8(3) nm,c=1.911 3(5) nm,β=112.26(3)°,Z=4;配合物2属于单斜晶系,空间群为P21/n,a=1.090 8(2) nm,b=1.873 1(4) nm,c=1.301 9(3) nm,β=91.09(3)°,Z=4;配合物3属于三斜晶系,空间群为P1,a=1.119 6(2) nm,b=1.481 2(3) nm,c=1.926 6(4) nm,α=89.72(3)°,β=87.65(3)°,γ=68.28(3)°,Z=2。

Three Cd(Ⅱ)/Co(Ⅱ)/Zn(Ⅱ) coordination complexes, formulated as [Cd(hbmb)0.5(pta)]n (1),[Co(hbmb)(1,4-bdc)]n (2),{[Zn2(hbmb)1.5(bptc)(H2O)]·0.5hbmb·3H2O}n (3)(hbmb=1,1′-(1,6-hexane)bis-(2-methylbenzimidazole), H2pta=homophthalic acid, 1,4-H2bdc=1,4-benzenedicarboxylic acid, H4bptc=3,3′,4,4′-benzophenone tetracar-boxylic acid), have been obtained by hydrothermal/solvothermal reactions. Complex 1 is a flat 4-connected 2D topology net with point symbol of (44·62), complex 2 features a undulated 2D network with point symbol of (42·6)(42·63·8), while complex 3 (3,4,4)-connected 3?鄄fold interpenetrating network with a vertex symbol of (42·62·82)(4·62)(4·64·8) topology. Crystal data are monoclinic, space group, P21/c, a=0.758 32(15) nm, b=1.452 8(3) nm, c=1.911 3(5) nm,β=112.26(3)°, Z=4 for 1;and monoclinic, space group, P21/n, a=1.090 8(2) nm, b=1.873 1(4) nm, c=1.301 9(3) nm,β=91.09(3)°, Z=4 for 2;and triclinic, space group, P1, a=1.119 6(2) nm, b=1.481 2(3) nm, c=1.926 6(4) nm,α=89.72(3)°,β=87.65(3)°,γ=68.28(3)°, Z=2 for 3. CCDC: 1885275, 1;1885276, 2;1885277, 3.