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A Photoresponsive Orthogonal Supramolecular Complex Based on Host–Guest Interactions
Author(s) -
Wang Dongsheng,
Wagner Manfred,
Saydjari Andrew K.,
Mueller Julius,
Winzen Svenja,
Butt HansJürgen,
Wu Si
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201604634
Subject(s) - azobenzene , supramolecular chemistry , dextrin , chemistry , host (biology) , cyclodextrin , stereochemistry , molecule , organic chemistry , biology , ecology , starch
We synthesized a novel green‐light‐responsive tetra‐ ortho ‐isopropoxy‐substituted azobenzene (ipAzo). Cis ‐ipAzo forms a strong host–guest complex with γ‐cyclo dextrin (γ‐CD) whereas trans ‐ipAzo binds weakly. This new photoresponsive host–guest interaction is reverse to the well‐known azobenzene (Azo)/α‐cyclodextrin (α‐CD) complex, which is strong only between trans ‐Azo and α‐CD. By combining the UV‐light‐responsive Azo/α‐CD and green‐light‐responsive ipAzo/γ‐CD host–guest complexes, a photoresponsive orthogonal supramolecular system is developed.