Fernandes AJ, Robert F, Landais Y, Künzler S, Müller T. On the Origin of the Non-Planarity in Biarylsilyloxonium Ions.
Chemistry 2021;
27:15496-15500. [PMID:
34472137 DOI:
10.1002/chem.202102614]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Indexed: 11/11/2022]
Abstract
The structure determination of a series of biphenylsilyloxonium cations through NMR and XRD studies, supported by DFT calculations was carried out, allowing to get insights into the origin of the oxygen pyramidalization in biphenyl and binaphthylsilyl oxoniums. Low barrier of inversion in the oxygenyl series points toward a key role of the biaryl axis in the inversion of configuration at the oxygen center.
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