アゾベンゼン含有ホストの光異性化とゲスト放出
Abstract
The rational design of a flexible molecular box, oAzoBox4+, incoporating both photochromic and supramolecular recognition motifs is described.
We exploit the E↔Z photoisomerization properties of azobenzenes to alter the shape of the cavity of the macrocycle upon absorption of light.
Imidazolium motifs are used as hydrogen-bonding donor components, allowing for sequestration of small molecule guests in acetonitrile.
Upon E→Z photoisomerization of oAzoBox4+ the guest is expelled from the macrocyclic cavity.