There is much contemporary interest in the development of new molecule-based materials for gas capture/sequestration, separation, sensing, etc. and efforts in this regard have mainly been directed toward materials with permanent micropores (MOFs, COFs, PIMs, intrinsically porous molecules). Little is known, however, about the properties of low packing fraction molecular materials that possess molecule-sized microcavities, but do not display formal pores. Such materials are likely to exhibit advantages with respect to selective gas capture and the kinetics of gas uptake and/or release would be expected to be largely dependent upon crystalline structure. This presentation will focus upon results from our laboratory in the context of the selective inclusion and confinement of gases within so-called container-molecule materials. Some simple molecular compounds have been observed to confine gases in the solid state at temperatures more than 300�C above their normal boiling points. 

Gas capture/confinement by molecular materials

243rd National Meeting (2012)

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