Porphyrin Boxes: Rationally Designed Porous Organic Cages

Autor:	Young Ho Ko, Md. Rumum Rohman, Youngkook Kim, Yonghwi Kim, Jiangtao Jia, Dohyun Moon, Soonsang Hong, Kimoon Kim, Eunsung Lee
Rok vydání:	2015
Předmět:	Chemistry High selectivity Sorption Nanotechnology General Chemistry General Medicine Porphyrin Catalysis chemistry.chemical_compound Molecular solid Chemical engineering Molecule Chemical stability Cage Porosity
Zdroj:	Angewandte Chemie. 127:13439-13442
ISSN:	1521-3757 0044-8249
Popis:	The porphyrin boxes (PB-1 and PB-2), which are rationally designed porous organic cages with a large cavity using well-defined and rigid 3-connected triangular and 4-connected square shaped building units are reported. PB-1 has a cavity as large as 1.95 nm in diameter and shows high chemical stability in a broad pH range (4.8 to 13) in aqueous media. The crystalline nature as well as cavity structure of the shape-persistent organic cage crystals were intact even after complete removal of guest molecules, leading to one of the highest surface areas (1370 m(2) g(-1)) among the known porous organic molecular solids. The size of the cavities and windows of the porous organic cages can be modulated using different sized building units while maintaining the topology of the cages, as illustrated with PB-2. Interestingly, PB-2 crystals showed unusual N2 sorption isotherms as well as high selectivity for CO2 over N2 and CH4 (201 and 47.9, respectively at 273 K at 1 bar).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e9afbb2bc1eb32577084fb64503f8ed https://doi.org/10.1002/ange.201505531 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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