|
ИСТИНА |
Войти в систему Регистрация |
Интеллектуальная Система Тематического Исследования НАукометрических данных |
||
Solvation-induced switching of the conformational state of alkoxy- and crown-substituted trisphthalocyaninates studied by UV-Vis and <sup>1</sup>H-NMR spectroscopyстатья
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: 15 февраля 2024 г.
- Авторы: Martynov Alexander G., Yagodin Alexey V., Birin Kirill P., Gorbunova Yulia G., Tsivadze Aslan Yu
- Журнал: Journal of Porphyrins and Phthalocyanines
- Том: 27
- Номер: 01n04
- Год издания: 2023
- Издательство: Society of Porphyrins and Phthalocyanines
- Местоположение издательства: France
- Первая страница: 414
- Последняя страница: 422
- DOI: 10.1142/s1088424623500104
- Аннотация: Solvation-induced switching between staggered and gauche conformers of europium(III) triple-decker complexes with n -butoxy- and crown-substituted phthalocyanine ligands [(BuO)8Pc]2− and [(15C5)4Pc]2− was studied by UV-Vis and 1H-NMR in toluene and chloroform media. The crown-substituted complex Eu2[(15C5)4Pc]3 was conformationally invariant, adopting the staggered arrangement of adjacent ligands in both solvents. In contrast, in the case of butoxy-substituted complex Eu2[(BuO)8Pc]3, the staggered and gauche forms were stabilized in toluene and chloroform, respectively. These conclusions could easily be drawn from the UV-Vis data. In contrast, a comparison of the 1H-NMR spectra of the complexes in both solvents showed that the spectral manifestation of conformational switching was obscured by media effects, although some characteristic spectral patterns of each conformation could still be identified on the example of the complex with hexa-n -butoxy-15-crown-5-phthalocyanine ligands Eu2[(BuO)6(15C5)Pc]3.
- Добавил в систему: Мартынов Александр Германович