A Microporous Heterovalent Copper–Organic Framework Based on [Cu<sub>2</sub>I]<sub><i>n</i></sub> and Cu<sub>2</sub>(CO<sub>2</sub>)<sub>4</sub> Secondary Building Units: High Performance for CO<sub>2</sub> Adsorption and Separation and Iodine Sorption and Release
作者:Jiaqi Yuan、Jiantang Li、Liang Kan、Lifei Zou、Jun Zhao、Dong-Sheng Li、Guanghua Li、Lirong Zhang、Yunling Liu
DOI:10.1021/acs.cgd.8b00820
日期:2018.9.5
A microporous heterovalent Cu-based MOF, [(Cu2I)Cu2L2(H2O)2]22+·2NO3–·5DMF (1) (H2L = 5-(4H-1,2,4-triazol-4-yl)benzene-1,3-dicarboxylic acid, DMF = N,N-dimethylformamide), has been successfully synthesized using the mixed secondary building unit (SBU) strategy. Compound 1 was constructed from [Cu2I]n chain and Cu2(CO2)4 paddlewheel SBUs and exhibited a new (3,4,4)-connected topology. Although compound
微孔杂铜基MOF [[(Cu 2 I)Cu 2 L 2(H 2 O)2 ] 2 2 + ·2NO 3 – ·5DMF(1)(H 2 L = 5-(4 H -1,已使用混合二级结构单元(SBU)策略成功合成了2,4-三唑-4-基)苯-1,3-二羧酸(DMF = N,N-二甲基甲酰胺)。由[Cu 2 I] n链和Cu 2(CO 2)4构成化合物1桨式SBU并展示了新的(3,4,4)连接拓扑。尽管化合物1具有中等的表面积,但与大多数报道的化合物相比,它具有更好的CO 2捕集(在273 K时为91.9 cm 3 g –1)和分离能力(在1 bar于298 K时,CH 4上的CO 2选择性= 8.2)。基于Cu x I y的MOF。而且,化合物1也是捕获和释放碘的良好候选者。