Modification of Methylaluminoxane-Activated ansa-Zirconocene Catalysts with Triisobutylaluminum—Transformations of Reactive Cations Studied by NMR Spectroscopy Научная публикация
| Журнал |
Chemistry - A European Journal
ISSN: 0947-6539 , E-ISSN: 1521-3765 |
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| Вых. Данные | Год: 2007, Том: 13, Номер: 18, Страницы: 5294-5299 Страниц : 6 DOI: 10.1002/chem.200601801 | ||||
| Ключевые слова | Aluminum alkyls, Metallocenes, Methylaluminoxane, Polymerization, Structure-activity relationships | ||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | 00-841 |
| 2 | BASELL GmbH |
Реферат:
When triisobutylaluminum (AliBu3) is added to solutions containing methylaluminoxane (MAO) and rac-[Me2Si(ind)2ZrCl2] (ind: indenyl) in C6D6, NMR spectra show that methyl-bridged mixed-alkylaluminum dimers Al(μ-Me)2Me4−xiBux predominate. These dimers react with MAO under partial transfer of isobutyl groups and induce a conversion of the initially prevailing cationic trimethylaluminum adduct rac-[Me2Si(ind)2Zr(μ-Me)2AlMe2+] to rac-[Me2Si(ind)2Zr(μ-Me)2AlMeiBu+] and rac-[Me2Si(ind)2Zr(μ-Me)2AliBu2+]. These species are unstable and release isobutene under formation of zirconocene hydrides.
Библиографическая ссылка:
Babushkin D.E.
, Brintzinger H.H.
Modification of Methylaluminoxane-Activated ansa-Zirconocene Catalysts with Triisobutylaluminum—Transformations of Reactive Cations Studied by NMR Spectroscopy
Chemistry - A European Journal. 2007.
V.13. N18. P.5294-5299. DOI: 10.1002/chem.200601801
WOS
Scopus
РИНЦ
CAPlusCA
PMID
OpenAlex
Modification of Methylaluminoxane-Activated ansa-Zirconocene Catalysts with Triisobutylaluminum—Transformations of Reactive Cations Studied by NMR Spectroscopy
Chemistry - A European Journal. 2007.
V.13. N18. P.5294-5299. DOI: 10.1002/chem.200601801
WOS
Scopus
РИНЦ
CAPlusCA
PMID
OpenAlex
Файлы:
Полный текст от издателя
Даты:
| Поступила в редакцию: | 14 дек. 2006 г. |
| Опубликована online: | 23 мар. 2007 г. |
| Опубликована в печати: | 15 июн. 2007 г. |
Идентификаторы БД:
| Web of science: | WOS:000247708300026 |
| Scopus: | 2-s2.0-34347257480 |
| РИНЦ: | 13547139 |
| Chemical Abstracts: | 2007:717025 |
| Chemical Abstracts (print): | 147:301250 |
| PMID (PubMed): | 17385201 |
| OpenAlex: | W2165145918 |