A molecular-sized tunnel-porous crystal with a ratchet gear structure and its one-way guest-molecule transportation property.
An anisotropic tunnel microporous crystal was prepared. Active transportation of anthracene as a guest molecule in the anisotropic tunnels was observed. The direction of anthracene movement implies that the anisotropic tunnel did not work as a flap-check valve. The direction of the movement was consistent with that caused by a Brownian ratchet.
Department of Applied Chemistry, Faculty of Engineering, Okayama University, Tsushimakana 3-1-1, Kita-ku, Okayama 700-8530, Japan.  tkata@cc.okayama-u.ac.jp.
Keisuke
K
Kataoka
Tetsuaki
T
Yasumoto
Yousuke
Y
Manabe
Hiroyasu
H
Sato
Akihito
A
Yamano
Toshimasa
T
Katagiri
D000873:Anthracenes / Q000737:chemistry*; D003460:Crystallization; D004735:Energy Transfer; D007773:Lactates / Q000737:chemistry*; D008422:Materials Testing; D008846:Micromanipulation / Q000379:methods*; D009038:Motion; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D013499:Surface Properties
D000873:Anthracenes; D007773:Lactates; C034020:anthracene