| 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 | |
| 摘要: 合成了3个配合物{[Zn3（L）2（SO4）2（H2O）4]·H2O}n（1）、{[Cd2（L）2（SO4）（H2O）]·H2O}n（2）和{[Cd（L）I]·CH3OH}n（3）（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）2（μ2-SO4）2]和Cd1两种节点形成的二维结构，相邻的二维层在π…π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 π…π 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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