Huang Yumei, Zheng Xiaofang, Duan Jingui, Liu Wenlong, Zhou Li, Wang Chenggang, Wen Lili, Zhao Jinbo, Li Dongfeng
Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China.
Dalton Trans. 2014 May 14;43(18):6811-8. doi: 10.1039/c4dt00230j.
A Cd(II)-MOF [Cd(L)(DMF)] (1) (H2L = 5-(4-pyridyl)-isophthalic acid) featuring high thermal and chemical stability has been solvothermally synthesized and characterized. Complex 1 is a robust multifunctional three-dimensional (3D) microporous framework possessing an unusual (4,5)-connected topological net. Activated 1 shows high-efficiency for the selective capture of CO2 over N2 and CH4 under ambient conditions, which ranks it among MOFs with the highest selectivity. In addition, desolvated 1 exhibits good separation ratios of H2 over N2 at lower temperature, as well as alcohols from water. In particular, desolvated 1 demonstrates significantly higher adsorption enthalpies for CO2 and CH4 gas molecules, which are in the range of the highest Q(st) values reported to date. Furthermore, complex 1 displays visible photoluminescence in the solid state under UV irradiation.
一种具有高热稳定性和化学稳定性的镉（II）-金属有机框架化合物[Cd(L)(DMF)] (1)（H2L = 5-(4-吡啶基)-间苯二甲酸）已通过溶剂热法合成并表征。配合物1是一种坚固的多功能三维（3D）微孔框架，具有不寻常的（4,5）连接拓扑网络。活化后的1在环境条件下对CO2具有高于N2和CH4的高效选择性捕获能力，使其跻身于选择性最高的金属有机框架化合物之列。此外，脱溶剂后的1在较低温度下对H2与N2以及醇与水表现出良好的分离比。特别地，脱溶剂后的1对CO2和CH4气体分子表现出明显更高的吸附焓，处于迄今为止报道的最高Q(st)值范围内。此外，配合物1在紫外光照射下在固态中显示出可见的光致发光。
