|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ПсковГУ |
||
Tetrachromophoric Derivatives of Dibenzoylmethanatoboron Difluoride Based on Stereoregular Cyclotetrasiloxanes: Synthesis and Propertiesстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 февраля 2024 г.
- Авторы: Belova Anastasia S., Kononevich Yuriy N., Ionov Dmitriy S., Sazhnikov Viacheslav A., Anisimov Anton A., Safonov Andrey A., Surin Nikolay M., Svidchenko Evgeniya A., Fedorov Yury V., Shchegolikhina Olga I., Muzafarov Aziz M.
- Журнал: Journal of Physical Chemistry B
- Том: 127
- Номер: 26
- Год издания: 2023
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 5881
- Последняя страница: 5898
- DOI: 10.1021/acs.jpcb.3c02300
- Аннотация: A series of new tetrachromophoric systems based on stereoregular tetracyclosiloxanes and dibenzoylmethanatoboron difluoride derivatives have been synthesized and characterized by a complex of physicochemical methods. The photophysical properties of the synthesized compounds are studied by electronic absorption, steady-state, and time-resolved fluorescence spectroscopy. In the synthesized compounds, four dibenzoylmethanatoboron difluoride (DBMBF2)-based fluorophores are in an all-cis arrangement with respect to a cyclotetrasiloxane scaffold. DFT calculations predict that they can form H-type dimers, trimers, or tetramers with an antiparallel orientation of their ground-state dipole moments. Under UV excitation, solutions of these compounds in polar and nonpolar solvents exhibit complex fluorescence consisting of monomer- and excimer-like emissions with different lifetimes. Global fitting analysis reveals the presence of at least four kinetically distinguishable species in the excited state. The studied compounds in solutions have CIE chromaticity coordinates very close to the white color point and are promising objects for the development of next-generation single-emission materials for white illumination.
- Добавил в систему: Белова Анастасия Станиславовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Экспертное заключение | Ekspertnoe_zaklyuchenie.pdf | 630,0 КБ | 18 июля 2023 [belova_anastasiia] | |
| 2. | Полный текст | Полный текст | anastasia-s-belova-tetrachromophoric-derivatives-of.pdf | 6,4 МБ | 10 августа 2023 [belova_anastasiia] |