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Proof of principle of a purine D–A–D$\prime$ ligand based ratiometric chemical sensor harnessing complexation induced intermolecular PETстатья
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: 10 февраля 2021 г.
- Авторы: Jovaisaite Justina, Cīrule Dace, Jeminejs Andris, Novosjolova Irina, Turks Māris, Baronas Paulius, Komskis Regimantas, Tumkevicius Sigitas, Jonusauskas Gediminas, Jursenas Saulius
- Журнал: Physical Chemistry Chemical Physics
- Том: 22
- Номер: 45
- Год издания: 2020
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 26502
- Последняя страница: 26508
- DOI: 10.1039/d0cp04091f
- Аннотация: A comprehensive photophysical study of a series of purines, doubly decorated at C2 and C6 positions with identical fragments ranging from electron acceptor to donor groups of different strengths, is presented. The asymmetry of substitutions creates a unique molecular D–A–D′ structure possessing two independent electronic charge transfer (CT) systems attributed to each fragment and exhibiting dual-band fluorescence. Moreover, the inherent property of coordination of metal ions by purines was enriched due to a presence of nearby triazoles used as spacers for donor or acceptor fragments. New molecules present a bidentate coordination mode, which makes the assembly of several ligands with one metal cation possible. This property was exploited to create a new concept of a ratiometric chemical fluorescence sensor involving the photoinduced electron transfer between branches of different ligands as a mechanism of fluorescence modulation.
- Добавил в систему: Jonusauskas Gediminas