Syntheses and stimuli-responsive rocking motions of a rotaxane bearing different stoppers
作者:Keiji Hirose、Shizuka Okada、Shota Umezaki、Philip G. Young、Yoshito Tobe
DOI:10.1016/j.jphotochem.2015.11.004
日期:2016.12
A rotaxane composed of a ring molecule having a metaphenylene unit, which swings as a pendulum, and a dianthrylethane unit, which undergoes isomerization in response to external stimuli, and an axle molecule with two different stopper units was synthesized. The rates of the rocking motion, which were switched reversibly, changed substantially by changing the size of the ringcomponent in response to
synthesized rotaxanes whose rates of rocking motion (pendular motion) were switched reversibly through changes to the size of the ringcomponent in response to external stimuli. The ring molecules of the rotaxanes incorporate a metaphenylene unit, which swings like a pendulum, and a dianthrylethane unit, which undergoes reversible isomerization in response to photo- and thermal stimuli and changes the size