Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu, Sakyo-ku, Kyoto 606-8501, Japan.
Org Lett. 2011 Feb 4;13(3):490-3. doi: 10.1021/ol102829h. Epub 2010 Dec 21.
Described are the syntheses, crystal structures, and solid-gas adsorption behaviors of azacalix[4]arene tetramethyl ether and azacalix[5]arene pentamethyl ether. While the former compound exhibited no adsorption of four main atmospheric components, the latter selectively and rapidly adsorbed CO(2) at ambient temperature and pressure. X-ray crystallographic and potential energy distribution analysis revealed that azacalix[5]arene created an energetically favorable space for CO(2) in its seemingly nonporous crystal, leading to the observed selective CO(2) uptake under ambient conditions.
描述了氮杂杯[4]芳烃四甲醚和氮杂杯[5]芳烃五甲醚的合成、晶体结构和固-气吸附行为。前者化合物对四种主要大气成分没有吸附作用，而后者则在环境温度和压力下选择性和快速地吸附 CO(2)。X 射线晶体学和势能分布分析表明，氮杂杯[5]芳烃在其看似无孔的晶体中为 CO(2)创造了一个有利的能量空间，导致在环境条件下观察到选择性的 CO(2)吸收。
