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Preparation and properties of stable protonation products of permethylmetallocenecarbaldehydes (M=Fe, Ru, Os)статья
Информация о цитировании статьи получена из
Scopus,
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 24 марта 2017 г.
- Авторы: Rybinskaya M.I., Kreindlin A.Z., Kiseleva L.N., Kamyshova A.A., Kruglova N.V., Petrovskii P.V., Epstein L.M., Krylov A.N., Shubina E.S., Turpeinen U.
- Журнал: Russian Chemical Bulletin
- Том: 44
- Номер: 12
- Год издания: 1995
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 2382
- Последняя страница: 2389
- DOI: 10.1007/BF00713612
- Аннотация: The products of O-protonation of metallocenecarbaldehydes C(5)Me(5)MC(5)Me(4)CHO (M = Fe, Ru, Os) with HBF4 and CF3COOH were obtained for the first time, the adducts [C(5)Me(5)MC(5)Me(4)CH(OH)](BF-)-B-+ being isolated in a pure state. The structures of the adducts depend on the nature of the metal and the anion and are governed by the correlation between their basicities. For example, the Fe-containing adducts have an open fulvenoid structure with an interionic hydrogen bond irrespective of the nature of the anion X (X BF4-, CF3COO-). In the case of the Ru- and Os-containing adducts in which the metal atoms are more basic than iron, the competition between the metal atom and the anion for the formation of a hydrogen bond with the OH group is clearly manifested in the IR and H-1 NMR spectra. In the presence of the weakly basic BF4- anion, a cyclic structure with an intramolecular M...HO hydrogen bond is formed, while in the presence of a more basic For CF3COO- anion, it transforms to the open fulvenoid structure with an interionic hydrogen bond. The structures of the compounds obtained were determined by IR and 1H NMR spectra, and the structure of the (C(5)Me(5)RuC(5)Me(4)CHOH)(+)...F- salt was proved by X-ray diffraction analysis.
- Добавил в систему: Шубина Елена Соломоновна