A Photoresponsive Orthogonal Supramolecular Complex Based on Host-Guest Interactions

作者：Wang Dongsheng; Wagner Manfred; Saydjari Andrew K; Mueller Julius; Winzen Svenja; Butt Hans Jurgen; Wu Si

来源：Chemistry - A European Journal, 2017, 23(11): 2628-2634.

DOI：10.1002/chem.201604634

• azo compounds
• cage compounds
• host-guest systems
• photochemistry
• supramolecular chemistry

We synthesized a novel green-light-responsive tetra-ortho-isopropoxy-substituted azobenzene (ipAzo). Cis-ipAzo forms a strong host-guest complex with gamma-cyclo dextrin (gamma-CD) whereas trans-ipAzo binds weakly. This new photoresponsive host-guest interaction is reverse to the well-known azobenzene (Azo)/alpha-cyclodextrin (alpha-CD) complex, which is strong only between trans-Azo and alpha-CD. By combining the UV-light-responsive Azo/alpha-CD and greenlight- responsive ipAzo/gamma-CD host-guest complexes, a photoresponsive orthogonal supramolecular system is developed.

• 出版日期2017-2