FLUO 7 |
| We constructed microporous soft crystals of double headed trifluorolactates connected by poly-methylene moiety; crystal of octamethylene-(S,S)-bis(3,3,3-trifluoro-2-hydroxypropanoate) (TFLA-d8) has ca. 2.8 Å diameter tunnel-type micropore and decamethylene-(S,S)-bis(3,3,3-trifluoro-2-hydroxypropanoate) (TFLA-d10) has ca. 4 Å diameter tunnel-type micropore. The tunnels would have small physi- or chemi-sorption abilities; the tunnel micropore did not adsorb gaseous molecules with a diameter smaller than the narrow region of the tunnel. Meanwhile they adsorbed certain amounts of bigger gaseous molecules with swelling of the crystal. Hysteresis of adsorption-desorption isotherm curves suggests hindrance of molecular moving in the tunnel. This hindrance shortens free path length of the gas molecules in the one-dimensional tunnel, which resulted in an existence of larger amount of gas molecules in the tunnel.
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Nanostructured Fluorocarbons: Smart Tectons for Self-Assembly
12:00 PM-5:05 PM, Sunday, August 19, 2007 BCEC -- 252B, Oral
Division of Fluorine Chemistry |
