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Zr vs. Ti Molecular and Silica-Supported Imido Complexes in Stoichiometric and Catalytic Oxo/Imido Heterometathesisстатья
Статья опубликована в высокорейтинговом журнале
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: 10 апреля 2024 г.
- Авторы: Pichugov Andrey V., Rumyantsev Andrey V., Bushkov Nikolai S., Zhizhin Anton A., Aleshin Dmitry Y., Talanova Valeria, Takazova Rina, Trummer David, Mance Deni, Zhizhko Pavel A., Zarubin Dmitry Nikolaevich
- Журнал: INORGANIC CHEMISTRY FRONTIERS
- Том: 10
- Год издания: 2023
- Первая страница: 5357
- Последняя страница: 5370
- DOI: 10.1039/d3qi00735a
- Аннотация: Surface Organometallic Chemistry (SOMC) aims at selective preparation of unusual or highly reactive species on the surfaces of inorganic supports in order to reach better understanding of classical heterogeneous catalysts and discover new reactivities and catalytic transformations. SOMC relies on the application of both surface science techniques and molecular organometallic chemistry, in particular it requires rational design of the molecular precursors to ensure their selective reactivity with the supports. In this report we apply the SOMC protocols to prepare well-defined silica-supported Zr imido complexes. We describe the synthesis of Zr imido pyrrolyl complexes Zr(=NR)(Me2Pyr)2(py)2 (R = tBu (1a), Ar (1b); Ar = 2,6-iPr2C6H3, Me2Pyr = 2,5-dimethylpyrrolyl, py = pyridine), investigate their grafting onto the surface of partially dehydroxylated silica and evaluate the obtained materials as oxo/imido heterometathesis catalysts in comparison with the previously reported highly active supported Ti systems. We also investigate the stoichiometric oxo/imido exchange reactivity of Zr imides using Ph2CO as a probe molecule, compare them with isostructural Ti analogs Ti(=NR)(Me2Pyr)2(py)2 (R = tBu (2a), Ar (2b)), and discuss how these results correlate with the differences in their electronic structure and catalytic performance of silica-supported species.
- Добавил в систему: Зарубин Дмитрий Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Selected pages | Zr_vs_Ti_selected_pages.pdf | 254,5 КБ | 18 июля 2023 [zarubindn] | |
| 2. | Экспертное заключение | eksp_zaklyuchenie_Inorg_Chem_Front.pdf | 611,4 КБ | 18 июля 2023 [zarubindn] |