13465-85-5

Basic information

• Product Name: trichloro(iodo)silane
• Synonyms: silane, trichloroiodo-; Trichloro(iodo)silane
• CAS NO: 13465-85-5
• Molecular Formula: Cl₃ISi
• Molecular Weight: 261.349
• Mol File: 13465-85-5.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 113.5°C at 760 mmHg
• Density: 2.229g/cm³
• Vapor Pressure: 24.534mmHg at 25°C
• Refractive Index: 1.567
• CAS DataBase Reference: trichloro(iodo)silane(CAS DataBase Reference)
• NIST Chemistry Reference: trichloro(iodo)silane(13465-85-5)
• EPA Substance Registry System: trichloro(iodo)silane(13465-85-5)

Safety Data

• Hazardous Substances Data: 13465-85-5(Hazardous Substances Data)

Upstream product

• 10026-04-7 tetrachlorosilane 
• 10034-85-2 hydrogen iodide 
• 17731-26-9 SiCl₄py2 
• 13465-84-4 silicon tetraiodide 
• 13977-54-3 diiododichlorosilane 
• 17760-13-3 trichloromethyltrichlorosilane 
• 56-34-8 tetraethylammonium chloride 
• 13517-10-7 boron triiodide 

Downstream Products

• 10026-04-7 tetrachlorosilane 
• 13465-84-4 silicon tetraiodide 
• 13977-54-3 diiododichlorosilane 
• 13932-03-1 triiodochlorosilane 

Relevant articles and documents

Trapping Experiments on a Trichlorosilanide Anion: A Key Intermediate of Halogenosilane Chemistry

Treatment of Si2Cl6 with [Et4N][BCl4] in CH2Cl2 furnished the known products of a chloride-induced disproportionation reaction of the disilane, such as SiCl4, [Si(SiCl3)3]-, and [Si6Cl12·2Cl]2-. No Si-B-bonded products were detectable. In contrast, the addition of Si2Cl6 to [Et4N][BI3Cl] afforded the Si-B adduct [Et4N][I3SiBI3]. Thus, a quantitative Cl/I exchange at the silicon atom accompanies the trihalogenosilanide formation. [Et4N][I3SiBI3] was also accessible from a mixture of Si2I6, [Et4N]I, and BI3. According to X-ray crystallography, the anion [I3SiBI3]- adopts a staggered conformation with an Si-B bond length of 1.977(6) ?. Quantum-chemical calculations revealed a polar covalent Si-B bond with significant contributions from intramolecular I···I dispersion interactions.