Abstract
A linear molecular architecture equipped with complementary three-fold hydrogen-bonding units embedded with a photoswitchable trans-tetrafluoroazobenzene moiety was synthesized. The transto cis photoisomerism of the azobenzene unit induced drastic changes in the molecular architecture as a result of intramolecular hydrogen bonding as evidenced by NMR spectroscopy and size exclusion chromatography. A minute stereogenic element in the linear trans state enabled stereoselective folding into the cis state, thus producing a globular architecture with enhanced chiroptical property.
Original language | English |
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Pages (from-to) | 3349-3353 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 56 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2017 Mar 13 |
Externally published | Yes |
Keywords
- azo compounds
- foldamers
- helical structures
- hydrogen bonds
- photochromism
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)