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Indexed by:Journal Papers
Date of Publication:2016-05-05
Journal:CHEMICAL COMMUNICATIONS
Included Journals:PubMed、SCIE
Volume:52
Issue:39
Page Number:6553-6556
ISSN No.:1359-7345
Abstract:Here, we present a new strategy to improve the rigidity of PIM-1 through the introduction of 8-membered ring locking into the flexible spiro-carbon pivot point to produce an interlocked polycyclic structure. This locked version of PIM-1 shows simultaneous increases in both permeability and selectivity that place it well above the Robeson upper bound for a number of important gas pairs. Molecular modelling demonstrates that the locked version of PIM-1 is much more rigid.