基于吡嗪-吡啶-酰腙配体的三个配合物的制备及其荧光和光催化性能
Three Complexes Based on Pyridine-Pyrazine-Hydrazone Ligand: Syntheses, Photocatalysis and Luminescent Properties
作者单位E-mail
徐周庆 河南理工大学化学化工学院, 焦作 454000  
何亚玲 河南理工大学化学化工学院, 焦作 454000  
李晴晴 河南理工大学化学化工学院, 焦作 454000  
张培玲 河南理工大学物理与电子信息学院, 焦作 454000 plzhang@hpu.edu.cn 
李慧军 河南理工大学化学化工学院, 焦作 454000 lihuijunxgy@hpu.edu.cn 
王元 河南理工大学化学化工学院, 焦作 454000 wangyuan08@hpu.edu.cn 
摘要: 合成了3个配合物{[Zn3(L)2(SO42(H2O)4]·H2O}n1)、{[Cd2(L)2(SO4)(H2O)]·H2O}n2)和{[Cd(L)I]·CH3OH}n3)(HL=N'-nicotinoyl-pyrazine-2-carbohydrazonamide),并通过单晶X射线衍射、红外、元素分析和粉末X射线衍射等手段进行表征。配合物1中,采用μ3-η1η1η1配位模式的SO42-把Zn(Ⅱ)连接成无机网状二维平面(bc面),有机配体HL交错的分布在网状平面的两侧,这些二维层在分子间氢键的作用下形成三维超分子结构。配合物2是由配体HL连接[(Cd2)2μ2-SO42]和Cd1两种节点形成的二维结构,相邻的二维层在ππ堆积作用下形成三维超分子结构。配合物3是一维的Z字链结构,这些一维链在氢键的连接作用下形成二维的超分子网络结构。光催化降解亚甲基蓝实验结果表明,在双氧水存在时配合物1~3均表现出很好的降解效果。
关键词: 金属-有机框架  荧光  光催化降解
基金项目: 国家自然科学基金(No.21601050),NSFC-河南地区联合基金(No.U1604124),河南省科技攻关项目(No.152102210314),河南省高等学校重点科研项目(No.16A150010),河南理工大学青年骨干教师项目(No.672105/198)和河南理工大学博士基金(No.72103/001/103)资助。
Abstract: Three novel complexes, namely {[Zn3(L)2(SO4)2(H2O)4]·H2O}n (1), {[Cd2(L)2(SO4)(H2O)]·H2O}n (2) and {[Cd(L)I]·CH3OH}n (3). (HL=N'-nicotinoylpyrazine-2-carbohydrazonamide), have been synthesized and character-ized by elemental analyses, infrared spectra and single-crystal X-ray diffraction analyze. In complex 1, Zn(Ⅱ) ions are connected by μ3,η1η1η1-SO42- anions to form a inorganic layer motif in bc plane, and the L- ligands are decorated on both sides of the layer. Adjacent layers are connected by hydrogen-bonding interactions giving rise to 3D supramolecular network. The 2D complex 2 is formed by the[(Cd2)2(μ2-SO4)2] units and Cd1 ions which are connected by the ligands. Adjacent layers of 2 are extended into 3D supramolecular network by ππ interactions. Zigzag 1D chains of complex 3 are connected by intermolecular hydrogen bonds into extended plane structure. The photocatalytic degradation of methylene blue (MB) results indicate that complexes 1~3 are excellent candidates as photocatalysts in decomposing MB with the presence of H2O2. In addition, the luminescent properties of these three complexes have been studied in the solid state.
Keywords: metal-organic framework  luminescent property  photocatalytic degradation
投稿时间:2017-09-17 修订日期:2018-01-24
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徐周庆,何亚玲,李晴晴,张培玲,李慧军,王元.基于吡嗪-吡啶-酰腙配体的三个配合物的制备及其荧光和光催化性能[J].无机化学学报,2018,34(4):757-766.
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