25127-53-1

Basic information

• Product Name: WSCl₄
• Synonyms: WSCl₄
• CAS NO: 25127-53-1
• Molecular Weight: 357.728
• Mol File: 25127-53-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: WSCl₄(CAS DataBase Reference)
• NIST Chemistry Reference: WSCl₄(25127-53-1)
• EPA Substance Registry System: WSCl₄(25127-53-1)

Safety Data

• Hazardous Substances Data: 25127-53-1(Hazardous Substances Data)

Upstream product

• 3385-94-2 hexamethyldisilathiane 
• 13283-01-7 tungsten(VI) chloride 
• 14629-67-5 benzylthiotrimethylsilane 
• 51048-30-7 (cyclohexylthio)trimethylsilane 

Downstream Products

• 114641-95-1 (P(C₆H₅)4)⁽¹⁺⁾*{WSCl₄}^(1-) 
• 3138-55-4 tetraphenylphosphonium triiodide 
• 145956-53-2 P(C₆H₅)4⁽¹⁺⁾*WSF₅^(1-) = P(C₆H₅)4{WSF₅} 
• 145956-55-4 ((C₆H₅)3P)2N⁽¹⁺⁾*{WSF₅}^(1-)*CH₃CN = ((C₆H₅)3P)2N{WSF₅}*CH₃CN 

Relevant articles and documents

Reactions of Organosulphur Ligands on Tungsten Centres. Evidence for Carbonium Ion Formation in the Degradation of Alkanethiolatopentachlorotungsten(VI) Species

The monothiolate derivatives of tungsten(VI) chloride, (R=Me, Et, cyclohexyl, Bui, But, CH2Ph, or Ph), have been found to be unstable with respect to at least two modes of degradation.Heterolytic cleavage of the carbon-sulphur bond to generate a carbonium ion, which can further abstract chloride to give WSCl4 + RCl, is the preferred pathway if the R(+) ion is relatively stable.The intermolecular elimination of R2S2 is the alternative route for degradation and is the exclusive one for R=Ph, where the carbonium ion is very unstable.The only pure compounds which have been isolated are and and even these slowly decompose at room temperature over a period of a few weeks.