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Synthesis and Structure of the First Bridgehead Silylium Ion

Synthesis and Structure of the First Bridgehead Silylium Ion

Authors :
Douglas R. Powell
Rudolf J. Wehmschulte
Gabriela L. Borosky
Kenneth K. Laali
Publication Year :
2014
Publisher :
American Chemical Society, 2014.

Abstract

We report the first successful synthesis of the long-sought arene-solvated bridgehead silylium ion [Si4Me3(CH2)6][CHB11Cl11] by hydride abstraction from the tetrasilaadamantyl derivative HSi4Me3(CH2)6 with the trityl salt [Ph3C][CHB11Cl11] in toluene, benzene, or bromobenzene solution. The silylium···arene complex was characterized by X-ray diffraction analysis and by NMR spectroscopy and was studied computationally. NMR studies show that the silylium species undergoes a dynamic solvate exchange in BrPh/MePh mixed solvent. Fil: Wehmschulte, Rudolf J.. Florida Institute of Technology; Estados Unidos Fil: Laali, Kenneth K.. University of North Florida; Estados Unidos Fil: Borosky, Gabriela Leonor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Powell, Douglas R.. Oklahoma State University; Estados Unidos

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....a22b979b8a0100e73766c4aa517c6ea0
Full Text :
https://doi.org/10.1021/om5003792