REACTIVITY OF MOLECULES WITH NITROGEN-CONTAINING FUNCTIONAL-GROUPS TOWARD H+ AND SIME3+ IONS

Citation
Vi. Kadentsev et al., REACTIVITY OF MOLECULES WITH NITROGEN-CONTAINING FUNCTIONAL-GROUPS TOWARD H+ AND SIME3+ IONS, Russian chemical bulletin, 47(6), 1998, pp. 1228-1229
Citations number
7
Categorie Soggetti
Chemistry
Journal title
ISSN journal
10665285
Volume
47
Issue
6
Year of publication
1998
Pages
1228 - 1229
Database
ISI
SICI code
1066-5285(1998)47:6<1228:ROMWNF>2.0.ZU;2-F
Abstract
The equilibrium constants of trimethylsilyl cation transfer reactions differ from those of proton transfer reactions by many orders of magni tude. The basicity of MeCN (1), MeNO2 (2), and Et2NH (3) in the gas ph ase decreases in the series 3 >> 1 > 2, whereas the affinity of the sa me compounds for trimethylsilyl cation decreases in the series 1 >> 3 approximate to 2. Semiempirical quantum-chemical MNDO calculations ind icate that the formation of MeCN . SiMe3+ ions is thermodynamically mo re favorable than that of MeNH2SiMe3+ ions.