文献类型：期刊文献

英文题名：Ligand geometry controlling Zn-MOF partial structures for their catalytic performance in Knoevenagel condensation

作者：He, Zimo[2];Zhao, Xi[1];Pan, Xinbo[1];Li, Yuanyuan[1];Wang, XiaoXiao[1];Xu, Haitao[1];Xu, Zhenliang[1]

机构：[1]ECUST, State Key Lab Chem Engn, Membrane Sci & Engn R&D Lab, Chem Engn Res Ctr, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]ECUST, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2019

卷号：9

期号：43

起止页码：25170

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20193407335262);WOS:【SCI-EXPANDED(收录号:WOS:000481573800055)】；

基金：We gratefully acknowledge the. nancial support from the National Natural Science Foundation of China (No. 21371058) and University Student Research Plan (USRP) of ECUST.

语种：英文

外文关键词：Condensation reactions - Condensation - Ligands - Nitrogen compounds

摘要：A series of novel Zn-MOFs {1Zn: [Zn(NIA)(2)(3-bpdh)(2)]; 2Zn: [Zn(NPA)(2)(4-bpdh)(2)H2O]; 3Zn: [Zn-2(CHDA)(4)(3-bpd)(2)]} were constructed by dicarboxylic acid and N,N '-bis(pyridine-yl-ethylidene)hydrazine. Ligand geometry revealed 1D to 3D Zn-MOF crystal topologies, whose combined-mode could be affected by the conditions. All these conditions affected the micro-nano crystal morphologies, namely 1Zn micro-sheets or nanospheres, 2Zn micro-clusters or micro-stick, and 3Zn micro-clusters or hollowspheres that were obtained. The catalysts exhibited 100% selectivity for Knoevenagel condensation reactions, among which the benzaldehyde conversion rate of the 3Zn hollowspheres was the highest, reaching a peak of 90%.