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Storage of Methane and Freon by Interstitial van der Waals Confinement
2002
Science
Preserved Fulltext
A known host-guest assembly, organized only by means of relatively weak dispersive forces, exhibits hitherto unappreciated thermal stability. The hexagonal close-packed arrangement of calix[4]arene contains lattice voids that can occlude small, highly volatile molecules. This host-guest system can be exploited to retain a range of freons, as well as methane, not only well above their normal boiling points, but also at relatively high temperatures and low pressures. The usually overlooked van
doi:10.1126/science.1072252
pmid:12004074
fatcat:2emk4jswvrdgtapfr2pszrjpjm