A silyl cation with a three-center si-h-si bond

Angew Chem Int Ed Engl. 2001;40(16):3033-6. doi: 10.1002/1521-3773(20010817)40:16<3033::AID-ANIE3033>3.0.CO;2-O.

Abstract

The unusually high kinetic stability of the silyl cation 1 is due to the presence of a three-center, two-electron Si-H-Si bond. NMR data ((1) H, (2) H, (13) C, (29) Si) are consistent with the static, symmetrical structure shown, which was further corroborated by the results of density functional calculations.

Keywords: NMR spectroscopy; cations; density functional calculations; isotope effects; silicon.