Multiple control of azoquinoline based molecular photoswitches

Chemical Science, Journal Year: 2024, Volume and Issue: 15(9), P. 3290 - 3299

Published: Jan. 1, 2024

Multi-addressable molecular switches with high sophistication are creating intensive interest, but challenging to control. Herein, we incorporated ring-chain dynamic covalent sites into azoquinoline scaffolds for the construction of multi-responsive and multi-state switching systems. The manipulation equilibrium by acid/base reactions primary/secondary amines allowed regulation E/Z photoisomerization. Moreover, carboxyl quinoline motifs provided recognition handles chelation metal ions turning off photoswitching, otherwise inaccessible Z-isomer complexes obtained via change stimulation sequence. Particularly, distinct binding behaviors primary amine secondary products offered a facile way modulating reactivity. As result, multiple control azoarene photoswitches was accomplished, including light, pH, ions, nucleophiles, interplay between diverse stimuli further enabling addressable within reaction networks. underlying structural mechanistic insights were elucidated, paving creation complex systems, assemblies, intelligent materials.

Language: Английский

3-pyridylazoindolium ion as water-soluble photoswitches with acid-alkali discoloration properties

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: unknown, P. 140476 - 140476

Published: Oct. 1, 2024

Language: Английский