Tris(''tert''-butoxy)silanethiol is a silicon compound containing three
''tert''-butoxy groups and a rare Si–S–H
functional group
In organic chemistry, a functional group is a substituent or moiety in a molecule that causes the molecule's characteristic chemical reactions. The same functional group will undergo the same or similar chemical reactions regardless of the rest ...
. This colourless compound serves as an hydrogen donor in
radical chain reaction
Radical may refer to:
Politics and ideology Politics
*Radical politics, the political intent of fundamental societal change
* Radicalism (historical), the Radical Movement that began in late 18th century Britain and spread to continental Europe an ...
s. It was first prepared by
alcoholysis
In chemistry, solvolysis is a type of nucleophilic substitution (S1/S2) or elimination reaction, elimination where the nucleophile is a solvent molecule. Characteristic of S1 reactions, solvolysis of a chirality (chemistry), chiral reactant affor ...
of
silicon disulfide
Silicon disulfide is the inorganic compound with the formula Silicon, SiSulfur, S2. Like silicon dioxide, this material is polymeric, but it adopts a 1-dimensional structure quite different from the usual polymorphism (materials science), forms o ...
and purified by distillation:
:3 (CH
3)
3COH + SiS
2 →
CH3)3COsub>3SiSH + H
2S
Since 1962 it was thoroughly studied including its acid-base properties and coordination chemistry with metal ions. It coordinates to metal ions via the sulfur and oxygen donor atoms.
[A. Pladzyk, A. Ozarowski, Ł. Ponikiewski: Crystal and electronic structures of Ni(II) silanethiolates containing flexible diamine ligands. Inorg. Chim. Acta 440 (2016) 84-93.]
References
{{DEFAULTSORT:Tris(Tert-Butoxy)Silanethiol
Hydrogen compounds
Silicon compounds
Tert-butyl compounds
Reagents for organic chemistry