Aminosilanetrithiol RSi(SH)3: an experimental and quantum-chemical study

Abstract

An interesting aminosilanetrithiol RSi(SH)₃ (R = N(SiMe₃)-2,6-iPr₂C₆H₃) has been prepared by the reaction of lithium aminosilanetrithiolate {RSi[SLi(THF)]₃}₂ with MeCOOH. Theoretical calculations indicate that the LP(N) → σ*(Si–S) and LP(S) → σ*(Si–S) electron donations remarkably contribute to the stabilization of the Si(SH)₃ part of the molecule. RSi(SH)₃ is the first example of a stable molecule containing three SH groups attached to one element.