Bromosilicon

Base Information

• Chemical Name: Bromosilicon
• CAS No.: 13465-73-1
• Molecular Formula: BrH3Si
• Molecular Weight: 111.02
• European Community (EC) Number: 869-874-6
• DSSTox Substance ID: DTXSID20158850
• Wikidata: Q16628040
• Mol file: 13465-73-1.mol

Synonyms:bromosilicon;Monobromosilane;13465-73-1;silicon bromine;Silane, bromo-;SiH3Br;Bromosilane [Forbidden];DTXSID20158850

Chemical Property of Bromosilicon

Chemical Property:

• Vapor Pressure: 1700mmHg at 25°C
• Melting Point: -93.9°C
• Boiling Point: 1.9°Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: g/cm³
• LogP: -0.07060
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 106.89526
• Heavy Atom Count: 2
• Complexity: 2

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: [Si]Br
• General Description: Monobromosilane (SiH3Br) is a bromosilane compound that can be synthesized via a PdCl2- or NiCl2-catalyzed hydrogen-halogen exchange reaction between hydrosilanes and alkyl or allyl bromides. This method provides a convenient and efficient route to produce bromosilanes, including monobromosilane, in good yields, with PdCl2 demonstrating higher catalytic activity than NiCl2. The resulting bromosilanes serve as valuable intermediates in the preparation of organosilicon compounds, though the reaction tends to favor full halogenation, posing challenges for selective partial halogenation.

Refernces

PdCl₂ and NiCl₂-catalyzed hydrogen-halogen exchange for the convenient preparation of bromo- and iodosilanes and germanes

10.1016/S0022-328X(02)02147-2

The research investigates a method for synthesizing bromo- and iodosilanes, as well as germanes, using a hydrogen–halogen exchange reaction catalyzed by PdCl2 or NiCl2. The purpose of the study is to develop a versatile and convenient synthetic route for these compounds, which are important reagents in the creation of various organosilicon and germanium compounds. The researchers found that treating hydrosilanes with alkyl or allyl bromides in the presence of a catalytic amount of PdCl2 or NiCl2 resulted in the formation of bromosilanes in good to high yields. Similarly, using alkyl iodides led to the formation of iodosilanes. The reactions were more efficient with PdCl2, but NiCl2 was also effective, albeit with lower activity. The study concludes that this method provides a practical and economic way to synthesize a variety of bromo- and iodosilanes and germanes, which could be useful in the synthesis of complex organosilicon and germanium compounds. However, the selective halogenation of partially halogenated products remains a challenge, as the reactions tend to produce fully halogenated compounds even at early stages.