Highly photostable and emissive thienyl-containing tris(2,4,6-trichlorophenyl)methyl radicals

Tolkachev, E.D.; Becker, C.S.; Trukhanov, V.A.; Dubinets, N.O.; Zuev, M.B.; Sonina, A.A.; Shundrina, I.K.; Bagryanskaya, E.G.; Paraschuk, D.Y.; Kazantsev, M.S.

Статья опубликована в высокорейтинговом журнале

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: 1 апреля 2026 г.

Авторы: Tolkachev Egor D., Becker Christina S., Trukhanov Vasily A., Dubinets Nikita O., Zuev Mikhail B., Sonina Alina A., Shundrina Inna K., Bagryanskaya Elena G., Paraschuk Dmitry Yu, Kazantsev Maxim S.
Журнал: Journal of Materials Chemistry С
Год издания: 2026
Издательство: Royal Society of Chemistry
Местоположение издательства: United Kingdom
DOI: 10.1039/d5tc04519c
Аннотация: Luminescent organic radicals are among the most promising materials for spintronics, upconversion, red and near infrared (NIR) organic light-emitting diodes suffering from the spin-statistics limitations. However, the number of emissive radicals applied in electronic devices is limited, and their design principles are still under discussion. Here we designed, synthesized and studied a series of tris(2,4,6-trichlorophenyl)methyl (TTM) radicals with thiophene-based donors. The radicals were synthesized via cross-coupling reaction of a convenient monobromo-substituted TTM precursor followed by proton elimination and oxidation. Our DFT calculations and experimental data indicate that the HOMO energy of the donor strongly affects the radical emission properties. The radical with the highest optical gap demonstrated deep red electroluminescence and photoluminescence with a quantum yield of up to 12%. The photostability of radicals was found to increase dramatically with substitution, and, according to the proposed mechanistic picture, the spin density on chlorine atoms, and the energy and lifetime of the lowest excited state, D1, control the photodegradation rate. Our results not only extend the pool of the luminescence radicals but also provide clear physical and chemical insights into their fundamental structure–property relations and may serve as the basis for future molecular design of highly stable and emissive radicals.
Добавил в систему: Дубинец Никита Олегович

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ЦЭМИ РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИСТИНА ЦЭМИ РАН

Highly photostable and emissive thienyl-containing tris(2,4,6-trichlorophenyl)methyl radicalsстатья

Прикрепленные файлы