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Hydrogen bonding to carbonyl hydride complex Cp*Mo(PMe3)(2)(CO)H and its role in proton transferстатья
Статья опубликована в высокорейтинговом журнале
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: 18 марта 2017 г.
- Авторы: Dub Pavel A., Filippov Oleg A., Belkova Natalia V., Daran Jean-Claude, Epstein Lina M., Poli Rinaldo, Shubina Elena S.
- Журнал: Dalton Transactions
- Том: 39
- Номер: 8
- Год издания: 2010
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 2008
- Последняя страница: 2015
- DOI: 10.1039/b916084a
- Аннотация: The interaction of the carbonyl hydride complex Cp*Mo(PMe3)(2)(CO) H with Bronsted (fluorinated alcohols, (CF3)(n)CH3-nOH (n = 1-3), and CF3COOH) and Lewis (Hg(C6F5)(2), BF3 center dot OEt2) acids was studied by variable temperature IR and NMR (H-1, P-31, C-13) spectroscopies in combination with DFT/B3LYP calculations. Among the two functionalities potentially capable of the interaction carbonyl and hydride ligands-the first was found to be the preferential binding site for weak acids, yielding CO center dot center dot center dot HOR or CO center dot center dot center dot Hg complexes as well as CO center dot center dot center dot(HOR)(2) adducts. For stronger proton donors ((CF3)(3)COH, CF3COOH) hydrogen-bonding to the hydride ligand can be revealed as an intermediate of the proton transfer reaction. Whereas proton transfer to the CO ligand is not feasible, protonation of the hydride ligand yields an (eta(2)-H-2) complex. Above 230 K dihydrogen evolution is observed leading to decomposition. Among the decomposition products compound [Cp*Mo(PMe3)(3)(CO)](+)[(CF3)(3)CO center dot 2HOC(CF3)(3)](-) resulting from a phosphine transfer reaction was characterized by X-ray diffraction. Reaction with BF3 center dot OEt2 was found to produce [Cp*Mo(PMe3)(2)(CO)BF4] via initial attack of the hydride ligand.
- Добавил в систему: Шубина Елена Соломоновна