Triplet states of 3,3′-alkylsubstituted thiacarbocyanine dimers and dimeric complexes with cucurbit[8]uril in water
- Авторлар: Zakharova G.V.1, Gutrov V.N.1, Plotnikov V.G.1,2, Chibisov A.K.1, Alfimov M.V.1,2
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Мекемелер:
- Photochemistry Center
- Tomsk State University
- Шығарылым: Том 51, № 5 (2017)
- Беттер: 345-349
- Бөлім: Photonics
- URL: https://bakhtiniada.ru/0018-1439/article/view/157251
- DOI: https://doi.org/10.1134/S0018143917050150
- ID: 157251
Дәйексөз келтіру
Аннотация
Alkylsubstituted thiacarbocyanines (3,3′-diethylthiacarbocyanine, D1, and 3,3′-disulfopropylthiacarbocyanine, D2), existing in water as monomers and dimers, manifest the ability to transition to the triplet state. The spectrum of triplet-triplet (T–T) absorption of the D2 dimers is shifted in the range higher than 590 nm by 20 nm to the red in comparison with the T–T spectrum of monomers. The D1 dimers in the presence of cucurbit[8]uril form a dimeric complex with two bands in the differential absorption spectrum. The band at 550 nm belongs to the triplet-triplet absorption of the dimeric complexes, and the band in the range of 620–700 nm is the result of charge transfer in the triplet state. The rate constants of deactivation for these triplet states coincide.
Негізгі сөздер
Авторлар туралы
G. Zakharova
Photochemistry Center
Хат алмасуға жауапты Автор.
Email: gvzakharova@gmail.com
Ресей, Moscow, 119421
V. Gutrov
Photochemistry Center
Email: gvzakharova@gmail.com
Ресей, Moscow, 119421
V. Plotnikov
Photochemistry Center; Tomsk State University
Email: gvzakharova@gmail.com
Ресей, Moscow, 119421; Tomsk, 634050
A. Chibisov
Photochemistry Center
Email: gvzakharova@gmail.com
Ресей, Moscow, 119421
M. Alfimov
Photochemistry Center; Tomsk State University
Email: gvzakharova@gmail.com
Ресей, Moscow, 119421; Tomsk, 634050
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