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三角柔性多羧酸金属有机骨架化合物的合成、结构及荧光性质
引用本文:荣介伟,章文伟.三角柔性多羧酸金属有机骨架化合物的合成、结构及荧光性质[J].无机化学学报,2018,34(12):2307-2315.
作者姓名:荣介伟  章文伟
作者单位:淮南师范学院化学与材料工程学院, 淮南 232038;南京大学化学化工学院, 配位化学国家重点实验室, 南京 210023,南京大学化学化工学院, 配位化学国家重点实验室, 南京 210023
基金项目:国家自然科学基金(No.21371091,21371150)资助项目。
摘    要:以柔性1,3,5-三(4-羧酸苯氧基)苯(H3TCPB)为配体,以4,4''-联吡啶(4,4''-BPY)为辅助配体,在溶剂热条件下合成了2个新颖的分别具有三核锌簇和三核钴簇的金属有机骨架化合物:{Zn3(TCPB)2(4,4''-BPY)]·DMF·3H2O}n1)和{Co1.5(TCPB)(DMF)(H2O)]·DMF}n2),通过单晶X射线衍射,红外光谱,元素分析,热重分析和粉末X射线衍射对其结构进行了表征。单晶X射线衍射分析表明化合物1属于三斜晶系,P1空间群,表现出三维(3,8)连接的网状结构,拓扑符号为:{43}2·{46·618·84}·{6};化合物2也属于三斜晶系,P1空间群,为二维(3,6)连接的网络层状结构,拓扑符号为:{43}4·{46·618·84}。此外,荧光性质研究表明固态化合物1在室温条件下发射出源于TCPB3-和4,4''-BPY配体的淡蓝色荧光,而化合物2在相似的条件下没有荧光发射。

关 键 词:柔性羧酸配体  金属有机骨架化合物  晶体结构  荧光
收稿时间:2018/8/30 0:00:00
修稿时间:2018/10/23 0:00:00

Syntheses, Structures and Photoluminescent Properties of Metal-Organic Frameworks Based on Triangle Flexible Multi-Carboxylic Ligand
RONG Jie-Wei and ZHANG Wen-Wei.Syntheses, Structures and Photoluminescent Properties of Metal-Organic Frameworks Based on Triangle Flexible Multi-Carboxylic Ligand[J].Chinese Journal of Inorganic Chemistry,2018,34(12):2307-2315.
Authors:RONG Jie-Wei and ZHANG Wen-Wei
Institution:School of Chemical and Materials Engineering, Huainan Normal University, Huainan, Anhui 232038, China;State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China and State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Abstract:Two novel metal-organic frameworks {Zn3(TCPB)2(4,4''-BPY)]·DMF·3H2O}n (1) with trinuclear zinc cluster units and {Co1.5(TCPB)(DMF)(H2O)]·DMF}n (2) with trinuclear cobalt cluster SBUs, have been prepared under solvothermal conditions based on flexible 1,3,5-tri(4-carboxyphenoxy) benzene ligand (H3TCPB) with the help of ancillary bridging N-donor pyridyl linker 4,4''-bipyridine (4,4''-BPY), and characterized by single crystal X-ray diffraction, IR spectra, elemental analyses, thermogravimetric analyses (TGA) and powder X-ray diffraction (PXRD). The single crystal X-ray diffraction analysis reveals that complex 1 crystallizes in triclinic space group P1 and exhibits three-dimensional (3D) (3,8)-connected network with Schläfli symbol of {43}2·{46·618·84}·{6}, complex 2 also belongs to the triclinic system with space group of P1 and shows two-dimensional (2D) (3,6)-connected net-like layered framework with Schläfli symbol of {43}4·{46·618·84}. In addition, the study of the solid state photoluminescent property of complex 1 indicates that it emits light blue fluorescence arising from TCPB3- and 4, 4''-BPY ligands at room temperature, while complex 2 is non-emissive under similar conditions.
Keywords:flexible carboxylic ligand  metal-organic framework  crystal structure  photoluminescence
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