Photoprocesses in Guest–Host Complexes of a Styryl Dye Thio Derivative with Cucurbiturils
- 作者: Svirida A.D.1, Ivanov D.A.1, Kryukov I.V.1, Petrov N.K.1, Aleksandrova N.A.1, Avakyan V.G.1, Gromov S.P.1,2
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隶属关系:
- Photochemistry Center, Russian Academy of Sciences, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences
- Faculty of Chemistry, Moscow State University
- 期: 卷 57, 编号 2 (2023)
- 页面: 100-107
- 栏目: PHOTONICS
- URL: https://journals.rcsi.science/0023-1193/article/view/139967
- DOI: https://doi.org/10.31857/S0023119323020146
- EDN: https://elibrary.ru/NHPEJK
- ID: 139967
如何引用文章
详细
Photoprocesses in aqueous solutions of the styryl dye 1-ethyl-4-{(E)-2-[4(methylthio)phenyl]vinyl}pyridinium perchlorate (1) and its complexes with cucurbit[n]urils (CB[n], n = 6–8) have been studied using the methods of stationary and time-resolved optical spectroscopy. The fluorescence intensity increases by approximately 3 times in 1 : 1 complexes of 1 and CB[6], whereas CB[7] has almost no effect on the fluorescence intensity. In 2 : 1 complexes with CB[8], the photocycloaddition reaction does not occur, with strong fluorescence quenching being associated with the formation of nonreactive dimers. The fluorescence decay kinetics of 1 has two characteristic times, 1.4 and ~130 ps, and changes little in the complexes. The photoinduced intramolecular charge transfer in 1 is an order of magnitude smaller than in the wellknown dye DASPI.
作者简介
A. Svirida
Photochemistry Center, Russian Academy of Sciences, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences
Email: ivanovd@photonics.ru
Moscow, 119421 Russia
D. Ivanov
Photochemistry Center, Russian Academy of Sciences, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences
Email: ivanovd@photonics.ru
Россия, 119421, Москва, ул. Новаторов, 7А-1
I. Kryukov
Photochemistry Center, Russian Academy of Sciences, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences
Email: ivanovd@photonics.ru
Moscow, 119421 Russia
N. Petrov
Photochemistry Center, Russian Academy of Sciences, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences
Email: ivanovd@photonics.ru
Moscow, 119421 Russia
N. Aleksandrova
Photochemistry Center, Russian Academy of Sciences, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences
Email: ivanovd@photonics.ru
Moscow, 119421 Russia
V. Avakyan
Photochemistry Center, Russian Academy of Sciences, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences
Email: ivanovd@photonics.ru
Moscow, 119421 Russia
S. Gromov
Photochemistry Center, Russian Academy of Sciences, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences; Faculty of Chemistry, Moscow State University
编辑信件的主要联系方式.
Email: ivanovd@photonics.ru
Moscow, 119421 Russia; Moscow, 119991
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