Rigid versus semi-rigid bis(imidazole) ligands in the assembly of two Co(<scp>ii</scp>) coordination polymers: structural variability, electrochemical properties and photocatalytic behavior
作者:Jing-Wang Cui、Suo-Xia Hou、Kristof Van Hecke、Guang-Hua Cui
DOI:10.1039/c6dt04626f
日期:——
5-cyclohexanetetracarboxylic acid (H4L) with CoCl2·2H2O and rigid or semi-rigid bis(imidazole) ligands were able to generate two Co(II) coordination polymers (CPs), [Co5(L)2(1,4-bimb)(μ3-OH)2(H2O)8]·2H2O}n (1), [Co(L)0.5(1,4-bib)]·H2O}n (2) (1,4-bimb = 1,4-bis(imidazol-1-ylmethyl)benzene, 1,4-bib = 1,4-bis(1H-imidazol-1-yl)benzene). CPs 1 and 2 were structurally characterized by elemental analysis, IR
1,2,4,5-环己烷四甲酸(H 4 L)与CoCl 2 ·2H 2 O和刚性或半刚性双(咪唑)配体的水热反应能够生成两种Co(II)配位聚合物(CPs) ),[CO 5(L)2(1,4-BIMB)(μ 3 -OH)2(H 2 O)8 ]·2H 2 ö} ñ(1),[CO(L)0.5(1 ,4-bib)]·H 2 O} n(2)(1,4-bimb = 1,4-双(咪唑-1-基甲基)苯,1,4-bib = 1,4-bis(1 H -咪唑-1-基)苯)。采购员通过元素分析,IR光谱,X射线粉末衍射和单晶X射线衍射在结构上表征图1和2。CP 1具有3D 3,3,4,4,5连接的框架,具有前所未有的4 2 ·8·10 2 ·12} 4 3 ·6·8 6 } 2 4 3 } 2 4 6 } 2 6 2 ·8} 2拓扑,代表具有这种拓扑的CP的第一个示例。CP 2具有带Mog的三重互穿3