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Synthesis, phosphorescence and luminescence properties of novel europium and gadolinium tris-acylpyrazolonate complexesстатья
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: 28 февраля 2020 г.
- Авторы: Taydakov Ilya V., Belousov Yury A., Lyssenko Konstantin A., Varaksina Eugenia, Drozdov Andrey A., Marchetti Fabio, Pettinari Riccardo, Pettinari Claudio
- Журнал: Inorganica Chimica Acta
- Год издания: 2019
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 119279
- DOI: 10.1016/j.ica.2019.119279
- Аннотация: Two new lanthanide (III) complexes, namely [Ln(QCy)3(H2O)] (Ln = Eu (1), Gd (2); HQCy = 1-phenyl-3-methyl-4-cyclohexylcarbonyl-pyrazol-5-one), have been obtained by reaction of corresponding Ln(NO3)3.xH2O with excess of HQCy and MOH, M = Li, Na, K or Cs. Unexpectedly, formation of the [Ln(QCy)4]- species was not observed, also when the reaction was carried out in ligand excess and by varying reaction conditions and molar ratios. [Eu(QCy)3(H2O)] (1) has been structurally characterized by single crystal X-ray study. The crystal structure of 1 is based on molecular [Eu(QCy)3(H2O)] moieties connected by O-H…N hydrogen bonds into 1D-chain. Phosphorescence spectra of 2 allowed to determine the very high energy of the triplet level of the ligand (QCy) 23640 cm-1, which correlates well with the calculated value of 24040 cm-1. Weak luminescence of the europium species 1 is observed even at room temperature.
- Добавил в систему: Белоусов Юрий Александрович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | ICA_2019.pdf | 1,3 МБ | 1 декабря 2019 [Yury_Belousov] |