Journal
ORGANIC LETTERS
Volume 13, Issue 3, Pages 490-493Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol102829h
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Funding
- ENEOS Hydrogen Trust
- Grants-in-Aid for Scientific Research [23245008] Funding Source: KAKEN
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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 CO2 at ambient temperature and pressure X-ray crystallographic and potential energy distribution analysis revealed that azacalix[5]arene created an energetically favorable space for CO2 in Its seemingly nonporous crystal, leading to the observed selective CO2 uptake under ambient conditions.
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