Issue 45, 2021

The influence of ring strain on the formation of Si–H–Si stabilised oligosilanylsilyl cations

Abstract

Hydride transfer between Si(SiMe2H)4 (2) and [Ph3C][B(C6F5)4] in 3-fluorotoluene yields the intermolecularly silane-stabilised silylium ion [((HMe2Si)3SiSiMe2)2H]+ ([5]+), independently of the amount of [Ph3C][B(C6F5)4] (0.5, 1.0 or 2.0 equiv.) used. The cyclic silane-stabilised silylium ion [4]+ is not detected by NMR spectroscopy. This result demonstrates the influence of ring strain effects on the formation of intra- ([4]+) or intermolecularly ([5]+) Si–H–Si bridged silyl cations.

Graphical abstract: The influence of ring strain on the formation of Si–H–Si stabilised oligosilanylsilyl cations

Supplementary files

Article information

Article type
Communication
Submitted
06 Oct 2021
Accepted
04 Nov 2021
First published
04 Nov 2021

Dalton Trans., 2021,50, 16509-16513

The influence of ring strain on the formation of Si–H–Si stabilised oligosilanylsilyl cations

J. P. Nimoth and T. Müller, Dalton Trans., 2021, 50, 16509 DOI: 10.1039/D1DT03375A

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