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Multistep assembling via intermolecular interaction between (bis)styryl dye and cucurbit[7]uril: Spectral effects and host sliding motionстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 января 2017 г.
- Авторы: Chernikova Ekaterina Y., Tkachenko Sergey V., Fedorova Olga A., Peregudov Alexander S., Godovikov Ivan A., Shepel Nikolay E., Minkovska Stela, Kurutos Atanas, Gadjev Nikolay, Deligeorgiev Todor G., Fedorov Yuri V.
- Журнал: Dyes and Pigments
- Том: 131
- Год издания: 2016
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 206
- Последняя страница: 214
- DOI: 10.1016/j.dyepig.2016.04.013
- Аннотация: Abstract The host–guest interaction between bis(styryl)pyridinium dye (BSP) and cucurbit[7]uril (CB[7]) was studied by means of optical spectroscopy, 1H and 2D (COSY, ROESY, DOSY) NMR spectroscopy and electrospray ionization mass spectrometry in different microenvironment (aqueous or phosphate buffer solution). The CB[7] macrocycles bind to BSP dye in a stepwise manner thus forming higher stoichiometric complexes such as (H+)2–BSP–(CB[7])3 in aqueous or BSP–(CB[7])3 in buffered solution. In the case of aqueous solution, complex formation is accompanied by the host-assisting protonation of the anilino-type BSP nitrogen atoms, that causes a pronounced effect on its spectral properties. Stimuli-responsive sliding movements of the CB[7] macrocycles along the stalk of dye molecule were also observed.
- Добавил в систему: Федоров Юрий Викторович