Bistable Aryl Azopyrazolium Ionic Photoswitches in Water

0571359 - ÚOCHB 2024 RIV US eng J - Článek v odborném periodiku
Gaur, A. K. - Gupta, D. - Mahadevan, A. - Kumar, P. - Kumar, H. - Nampoothiry, D. N. - Kaur, N. - Thakur, S. K. - Singh, S. - Slanina, Tomáš - Venkataramani, S.
Bistable Aryl Azopyrazolium Ionic Photoswitches in Water.
Journal of the American Chemical Society. Roč. 145, č. 19 (2023), s. 10584-10594. ISSN 0002-7863. E-ISSN 1520-5126
Grant CEP: GA MŠMT(CZ) LTAIN19166
Institucionální podpora: RVO:61388963
Klíčová slova: isomerization * solvent * photoisomerization
Obor OECD: Organic chemistry
Impakt faktor: 15, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1021/jacs.2c13733

We report a new class of arylazopyrazolium-based ionic photoswitches (AAPIPs). These AAPIPs with different counter ions have been accessed through a modular synthetic approach in high yields. More importantly, the AAPIPs exhibit excellent reversible photoswitching and exceptional thermal stability in water. The effects of solvents, counter ions, substitutions, concentration, pH, and glutathione (GSH) have been evaluated using spectroscopic investigations. The results revealed that the bistability of studied AAPIPs is robust and near quantitative. The thermal half-life of Z isomers is extremely high in water (up to years), and it can be lowered electronically by the electron-withdrawing groups or highly basic pH.
Trvalý link: https://hdl.handle.net/11104/0342601


Vědecká data: CCDC, CCDC