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Unusual ‘Turn-on’ Ratiometric Response of Fluorescent Porphyrin-Pyrene Dyads to the Nitroaromatic Compoundsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Shepeleva Irina I., Birin Kirill P., Polivanovskaia Daria A., Martynov Alexander G., Shokurov Alexander V., Tsivadze Aslan Yu, Selektor Sofiya L., Gorbunova Yulia G.
- Журнал: Chemosensors
- Том: 11
- Номер: 1
- Год издания: 2023
- Издательство: MDPI Publishing
- Местоположение издательства: Basel, Switzerland, Switzerland
- Первая страница: 43
- DOI: 10.3390/chemosensors11010043
- Аннотация: Detection of nitroaromatic compounds (NAC) is an important task since these substances are hazardous to both the biosphere and the society. Fluorescent sensors developed for NAC detection usually demonstrate a ‘turn-off’ response to the analyte, while ‘turn-on’ sensors are rarely reported. Here, we present a showcase report on new pyrene-imidazoporphyrin dyads that demonstrate an unusual analytic response to NAC with clear ‘turn-on’ behavior followed by an unexpected appearance of a new band, which can be ascribed to exciplex emission. The porphyrin backbone of the dyad also allows registration of its own fluorescence, providing an internal reference signal for ratiometric detection. The association constants in the order of 104 M1 are reported.
- Добавил в систему: Селектор София Львовна