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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Construction of five Zn(II)/Cd(II) coordination polymers derived from a new linear carboxylate/pyridyl ligand: design, synthesis, and photocatalytic properties
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Construction of five Zn(II)/Cd(II) coordination polymers derived from a new linear carboxylate/pyridyl ligand: design, synthesis, and photocatalytic properties

机译:新型线性羧酸盐/吡啶基配体衍生的五种Zn(II)/ Cd(II)配位聚合物的构建:设计,合成和光催化性能

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Solvothermal reactions of Cd(OAc)(2)/Zn(OAc)(2) with a new ligand, (pyridin-3-yl) methyl 4-(2-(4-((pyridin-3-yl) methoxy) phenyl) diazenyl) benzoate (L1), under different templates via an in situ ligand transformation reaction produced five coordination polymers, [CdL2(H2O)] n (1), [Cd1.5L3](n) (2), [Cd2L4](n) (3), [(ZnL2)center dot H2O](n) (4) and {[Zn(1,3-BDC)(L1)]center dot MeCN center dot 0.5H(2)O}(n) (5), where HL = 4-(2-(4-((pyridin-3-yl) methoxy) phenyl) diazenyl) benzoic acid, 1,3-H2BDC = 1,3-benzenedicarboxylic acid. Compound 1 is a three-dimensional (3D) wave-like structure constructed from 4-connected Cd(II) nodes and L- linkers. Compounds 2 and 3 bear similar 2D networks built from metallocyclic [Cd4L4] units. Compound 4 features a wrinkled 2D layer based on metallocyclic [Zn4L4] units. Compound 5 has a novel 1D single-wall metal-organic nanotube (SWMONT) in which the 1,3-BDC ligands act as linkers to connect the [Zn-2(L1)(2)] rings. The results reveal that the different templates have a significant effect on the final structures. Compounds 1-5 exhibited relatively high photocatalytic activity towards the degradation of methylene blue (MB) in aqueous solution under UV-Vis irradiation. The kinetics of the catalytic photodegradation reactions and the stabilities of photocatalysts were also investigated.
机译:Cd(OAc)(2)/ Zn(OAc)(2)与新配体(吡啶-3-基)甲基4-(2-(4-((吡啶-3-基)甲氧基)苯基的溶剂热反应)二氮烯基)苯甲酸酯(L1),在不同模板下通过原位配体转化反应产生了五种配位聚合物[CdL2(H2O)] n(1),[Cd1.5L3](n)(2),[Cd2L4]( n)(3),[(ZnL2)中心点H2O](n)(4)和{[Zn(1,3-BDC)(L1)]中心点MeCN中心点0.5H(2)O}(n) (5),其中HL = 4-(2-(4-(((吡啶-3-基)甲氧基)苯基)二氮烯基)苯甲酸),1,3-H2BDC = 1,3-苯二甲酸。化合物1是由4个连接的Cd(II)节点和L-接头构成的三维(3D)波浪状结构。化合物2和3具有类似的由金属环[Cd4L4]单元构建的2D网络。化合物4具有基于金属环[Zn4L4]单元的起皱2D层。化合物5具有新颖的一维单壁金属有机纳米管(SWMONT),其中1,3-BDC配体充当连接[Zn-2(L1)(2)]环的连接基。结果表明,不同的模板对最终结构有重大影响。化合物1-5在UV-Vis照射下对水溶液中的亚甲基蓝(MB)的降解表现出较高的光催化活性。还研究了催化光降解反应的动力学和光催化剂的稳定性。

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