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The reaction can be noticed on exposure of the liquid to air, as SiCl 4 vapour produces fumes as it reacts with moisture to give a cloud-like aerosol of silica and hydrochloric acid. [6] In contrast, carbon tetrachloride is not readily hydrolyzed. With alcohols it reacts to give orthosilicate esters: SiCl 4 + 4 ROH → Si(OR) 4 + 4 HCl
In inorganic chemistry, chlorosilanes are a group of reactive, chlorine-containing chemical compounds, related to silane (SiH 4) and used in many chemical processes. Each such chemical has at least one silicon-chlorine (Si−Cl) bond. Trichlorosilane is produced on the largest scale. The parent chlorosilane is silicon tetrachloride (SiCl 4). [1]
3 SiCl + ROH → (CH 3) 3 Si-O-R + HCl. Silyl ethers are extensively used as protective groups for alcohols. Exploiting the strength of the Si-F bond, fluoride sources such as tetra-n-butylammonium fluoride (TBAF) are used in deprotection of silyl ethers: (CH 3) 3 Si-O-R + F − + H 2 O → (CH 3) 3 Si-F + H-O-R + OH −
4 R 2 AlH + SiBr 4 → SiH 4 + 4 R 2 AlBr. Reactions with alcohols and amines proceed as follows: [3] SiBr 4 + 4 ROH → Si(OR) 4 + 4 HBr SiBr 4 + 8 HNR 2 → Si(NR 2) 4 + 4 HNR 2 HBr. Grignard reactions with metal alkyl halides are particularly important reactions due to their production of organosilicon compounds which can be converted to ...
Nanowires based on silicon and manganese can be synthesised from Mn(CO) 5 SiCl 3 forming nanowires based on Mn 19 Si 33. [ 14 ] or grown on a silicon surface [ 15 ] [ 16 ] [ 17 ] MnSi 1.73 was investigated as thermoelectric material [ 18 ] and as an optoelectronic thin film. [ 19 ]
Silicon carbide is rapidly attacked by chlorine gas, which forms SiCl 4 and carbon at 100 °C and SiCl 4 and CCl 4 at 1000 °C. It is mostly used as an abrasive and a refractory material, as it is chemically stable and very strong, and it fractures to form a very sharp cutting edge.
Via hydrosilylation, trichlorosilane is a precursor to other useful organosilicon compounds: . RCH=CH 2 + HSiCl 3 → RCH 2 CH 2 SiCl 3. Some useful products of this or similar reactions include octadecyltrichlorosilane (OTS), perfluoroctyltrichlorosilane (PFOTCS), and perfluorodecyltrichlorosilane (FDTS).
2 SiHCl 3 → SiH 2 Cl 2 + SiCl 4; 2 SiH 2 Cl 2 → SiHCl 3 + SiH 3 Cl; 2 SiH 3 Cl → SiH 4 + SiH 2 Cl 2; The silane produced by this route can be thermally decomposed to produce high-purity silicon and hydrogen in a single pass. Still other industrial routes to silane involve reduction of silicon tetrafluoride (SiF 4) with sodium hydride (NaH ...