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Polyphenylcyclopentadienyl Ligands as an Effective Light- Harvesting π‑Bonded Antenna for Lanthanide +3 Ionsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Roitershtein Dmitrii M., Puntus Lada N., Vinogradov Alexander A., Lyssenko Konstantin A., Minyaev Mikhail E., Dobrokhodov Mikhail D., Taidakov Ilya V., Varaksina Evgenia A., Churakov Andrei V., Nifant’ev Ilya E.
- Журнал: Inorganic Chemistry
- Год издания: 2018
- Издательство: American Chemical Society
- Местоположение издательства: United States
- DOI: 10.1021/acs.inorgchem.8b01405
- Аннотация: A new approach to design “antenna-ligands” to enhance the photoluminescence of lanthanide coordination compounds has been developed based on a π-type ligand the polyphenyl-substituted cyclopentadienyl. The complexes of di-, tri-, and tetraphenyl cyclopentadienyl ligands with Tb and Gd have been synthesized and all the possible structural types from mononuclear to di- and tetranuclear complexes, as well as a coordination polymer were obtained. All types of the complexes have been studied by single-crystal X-ray diffraction and optical spectroscopy. All terbium complexes are luminescent at ambient temperature and two of them have relatively high quantum yields (50 and 60%). Analysis of energy transfer process has been performed and supported by quantum chemical calculations. The role of a low-lying intraligand charge transfer state formed by extra coordination with K+ in the Tb3+ ion luminescence sensitization is discussed. New aspects for design of lanthanide complexes containing π-type ligands with desired luminescence properties have been proposed.
- Добавил в систему: Нифантьев Илья Эдуардович