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四种包含氨基官能化羧酸盐配体的新型d金属有机框架：合成、结构及荧光性质

Four Novel d Metal-Organic Frameworks Incorporating Amino-Functionalized Carboxylate Ligands: Synthesis, Structures, and Fluorescence Properties.

作者信息

Xie Wang, Wu Jie, Hang Xiaochun, Zhang Honghai, Shen Kang, Wang Zhoulu

机构信息

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, School of Energy Science and Engineering, Nanjing Tech University, Nanjing, China.

State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, China.

出版信息

Front Chem. 2021 Aug 30;9:708314. doi: 10.3389/fchem.2021.708314. eCollection 2021.

DOI:10.3389/fchem.2021.708314
PMID:34527657
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8435610/
Abstract

By employment of amino-functionalized dicarboxylate ligands to react with d metal ions, four novel metal-organic frameworks (MOFs) were obtained with the formula of {[Cd(BCPAB)( -HO)]} (1), {[Cd(BDAB)]∙2HO∙DMF} (2), {[Zn(BDAB)(BPD)(HO)]∙2HO} (3) and {[Zn(BDAB)(DBPB)(HO)]∙2HO} (4) (HBCPAB = 2,5-bis(p-carbonylphenyl)-1-aminobenzene; HBDAB = 1,2-diamino-3,6-bis(4-carboxyphenyl)benzene); BPD = (4,4'-bipyridine); DBPB = (2,5-dimethoxy-1,4-bis-[2-pyridin-vinyl]-benzene; DMF = ,-dimethylformamide). Complex 1 is a three-dimensional (3D) framework bearing -3,5- nets with point symbol of {4.6}{4.6.8}. Complex 2 exhibits a 4,4-connected new topology that has never been reported before with point symbol of {4.8}. Complex 3 and 4 are quite similar in structure and both have 3D supramolecular frameworks formed by 6-fold and 8-fold interpenetrated 2D coordination layers. The structures of these complexes were characterized by single crystal X-ray diffraction (SC-XRD), thermal gravimetric analysis (TGA) and powder X-ray diffraction (PXRD) measurements. In addition, the fluorescence properties and the sensing capability of 2-4 were investigated as well and the results indicated that complex 2 could function as sensor for Cu and complex 3 could detect Cu and Ag quenching effect.

摘要

通过使用氨基官能化的二羧酸配体与d金属离子反应，获得了四种新型金属有机框架（MOF），其化学式分别为{[Cd(BCPAB)( -HO)]} (1)、{[Cd(BDAB)]∙2HO∙DMF} (2)、{[Zn(BDAB)(BPD)(HO)]∙2HO} (3) 和 {[Zn(BDAB)(DBPB)(HO)]∙2HO} (4)（HBCPAB = 2,5-双（对羰基苯基）-1-氨基苯；HBDAB = 1,2-二氨基-3,6-双（4-羧基苯基）苯；BPD = （4,4'-联吡啶）；DBPB = （2,5-二甲氧基-1,4-双-[2-吡啶基乙烯基]-苯；DMF = N,N-二甲基甲酰胺）。配合物1是具有-3,5-网络的三维（3D）框架，点符号为{4.6}{4.6.8}。配合物2展现出一种前所未有的4,4-连接新拓扑结构，点符号为{4.8}。配合物3和4在结构上非常相似，均具有由6重和8重互穿的二维配位层形成的3D超分子框架。这些配合物的结构通过单晶X射线衍射（SC-XRD）、热重分析（TGA）和粉末X射线衍射（PXRD）测量进行了表征。此外，还研究了2 - 4的荧光性质和传感能力，结果表明配合物2可作为Cu的传感器，配合物3可检测Cu和Ag的猝灭效应。

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