Liu Lei-Lei, Yu Cai-Xia, Du Ji-Min, Liu Shi-Min, Cao Jing-Shuai, Ma Lu-Fang
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455000, Henan, P. R. China.
College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, Henan, P. R. China.
Dalton Trans. 2016 Aug 2;45(31):12352-61. doi: 10.1039/c6dt02312f.
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)·H2O]n (4) and {[Zn(1,3-BDC)(L1)]·MeCN·0.5H2O}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 [Zn2(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.
乙酸镉（Cd(OAc)₂）/乙酸锌（Zn(OAc)₂）与新型配体4-(2-(4-((吡啶-3-基)甲氧基)苯基)重氮基)苯甲酸(吡啶-3-基)甲酯（L1）通过原位配体转化反应，在不同模板下进行溶剂热反应，生成了五种配位聚合物，分别为[CdL₂(H₂O)]ₙ（1）、[Cd₁.₅L₃]ₙ（2）、[Cd₂L₄]ₙ（3）、[(ZnL₂)·H₂O]ₙ（4）和{[Zn(1,3-BDC)(L1)]·MeCN·0.5H₂O}ₙ（5），其中HL = 4-(2-(4-((吡啶-3-基)甲氧基)苯基)重氮基)苯甲酸，1,3-H₂BDC = 1,3-苯二甲酸。化合物1是由4连接的Cd(ii)节点和L⁻连接体构建而成的三维（3D）波浪状结构。化合物2和3具有由金属环[Cd₄L₄]单元构建的类似二维网络。化合物4具有基于金属环[Zn₄L₄]单元的褶皱二维层。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配体作为连接体连接[Zn₂(L1)₂]环。结果表明，不同的模板对最终结构有显著影响。化合物1 - 5在紫外 - 可见光照下对水溶液中亚甲基蓝（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。
