Abstract
The tetrazole-functionalised calixdiquinone 5,17-di-tert-butyl-26,28-bis-(1H-tetrazole-5-ylmethoxy)-calix[4]-25,27-diquinone Q was synthesised by chemical oxidation of the bis-tetrazole calix[4]arene precursor using PbO2/HClO4. The single crystal X-ray structure determination of Q confirmed the structure and showed binding of a water molecule in the solid state. Chemical reduction of Q to the dihydroquinone QR was achieved using N,N-diethylhydroxylamine. Comparison of the solution phase photophysical properties of Q or QR in the presence of terbium ions showed significant excitation only with QR, suggesting redox switching of the photophysical response may be possible with this or similar receptor.
[GRAPHICS]
.
Original language | English |
---|---|
Pages (from-to) | 466-472 |
Number of pages | 7 |
Journal | Supramolecular Chemistry |
Volume | 31 |
Issue number | 7 |
DOIs | |
Publication status | Published - 3 Jul 2019 |