respectively. Both compounds show favorable adsorption toward carbon dioxide over other light gases such as nitrogen, oxygen, and carbon monoxide. Ideal adsorbed solution theory is employed to predict the adsorption selectivity of binary gas mixtures. Though compounds 1 and 2 possess similar structures, differences are observed in their gas adsorption behaviors, which can be attributed to their different
在本工作中,我们报告了两种新型
镉基多孔配位聚合物[Cd(pda)0.5(spiro-4-py)0.5(HCOO)]·2H 2 O的设计,合成,晶体结构确定和吸附性能。·
DMF(化合物1,pda =对苯二
乙酸对苯二甲酸酯,spiro-4-py =(2,2',7,7'-四(
吡啶-4-基)-9,9'-螺双[
芴],
DMF = N,N'-二甲基甲酰胺)和[Cd 2(pda)(spiro-4-py)(CH 3 COO)2 ]·
DMA(化合物2,
DMA = N,N'-二甲基乙酰胺)具有相似的结构。
镉与两个有机连接基(pda和spiro-4-py)之间的配合产生了带有菱形开口的二维框架。这些二维网络的堆叠不会阻塞开口,而是会导致最终结构中带有一维通道的永久性孔隙。这些化合物的永久孔隙率通过气体吸附测量得到证实。化合物1和2的Brunauer-Emmett-Teller表面积为687和584 m 2/ g。