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Вид документа : Статья из журнала Шифр издания :
Автор(ы) : Voronkov M. G., Grebneva E. A., Albanov A. I., Zel'bst E. A., Trofimova O. M., Vasil'ev A. D., Chernov N. F., Timofeeva E. N.
Заглавие : Neutral pentacoordinate silicon complexes with SiO2FC skeleton:. Synthesis, structural characterization and stereodynamical behavior
Коллективы :
Found of President of Russian Federation [3649.2014.3]; Russian Foundation for Basic Research [14-03-31381 \14]
Место публикации : J. Organomet. Chem.: Elsevier Science, 2014. - Vol. 768. - P.10-14. - ISSN 0022-328X, DOI 10.1016/j.jorganchem.2014.05.025. - ISSN 1872-8561 Примечания : Cited References: 31. - We thank the Found of President of Russian Federation (Science Schools' Grant - 3649.2014.3) and Russian Foundation for Basic Research (No. 14-03-31381 \14) for financial support. We thank Prof. Bagrat Shainyan (Irkutsk Institute of Chemistry) for calculation SUP19/SUPF NMR spectra and helpful discussion and Dr. Svetlana Kirpichenko (Irkutsk Institute of Chemistry) for all the help rendered.
Предметные рубрики: 1,3-DIOXA-6-AZA-2-SILACYCLOOCTANES DIETHANOLAMINES DERIVATIVES SILATRANES REACTIVITY NITROGEN ELEMENTS Ключевые слова (''Своб.индексиров.''): pentacoordinate silicon--1-fluoro-1-aryl-5-methylquasisilatranes--synthesis--x-ray diffraction Аннотация: A series of new pentacoordinate intramolecular organosilicon complexes F(Ar)Si(OCH2CH2)2NMe (Ar = 4-MeC6H4 (1), 4-MeOC6H4 (2), 4-ClC6H4 (3), 2-BrC6H4 (4), 3-NO2C6H4 (5)) has been synthesized by transsilylation of aryltrifluorosilanes ArSiF3 by N-methyl-bis(2-trimethylsiloxyethyl)amine. Compounds 1–5 have been fully characterized by 1H, 13C, 19F, 29Si NMR spectroscopy and X-ray diffraction analysis (for compound 3). Variable-temperature 19F NMR studies of 5 indicate stereodynamic process of the ligand exchange with activation barrier Δ G c ≠ of 13.1 kcal mol−1.
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