SiH2Br2

Base Information

• Chemical Name: SiH2Br2
• CAS No.: 13768-94-0
• Molecular Formula: Br2H2Si
• Molecular Weight: 189.909
• DSSTox Substance ID: DTXSID00929868
• Mol file: 13768-94-0.mol

Synonyms:SiBr2;SiH2Br2;DTXSID00929868

Chemical Property of SiH2Br2

Chemical Property:

• Vapor Pressure: 166mmHg at 25°C
• Melting Point: -70.1°C
• Boiling Point: 66°C at 760 mmHg
• PSA: 0.00000
• Density: 2.111 (estimate)
• LogP: 0.77500
• Water Solubility.: decomposed by H2O [CRC10]
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 187.81155
• Heavy Atom Count: 3
• Complexity: 2.8

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: [Si](Br)Br

Technology Process of SiH2Br2

There total 6 articles about SiH2Br2 which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

bromine (7726-95-6) + monosilane (7440-21-3) → tribromosilane (7789-57-3) + silyl bromide (14791-57-2) + dibromosilane (13768-94-0) + hydrogen bromide (10035-10-6,12258-64-9) + tetrabromosilane (7789-66-4)

Guidance literature:

In neat (no solvent); reaction of Br2 and excess SiH4; cooling;; fractionation;;

Reference yield:

silver(I) bromide + monosilane (7440-21-3) → silyl bromide (14791-57-2) + dibromosilane (13768-94-0) + hydrogen bromide (10035-10-6,12258-64-9) + silver (7440-22-4)

Guidance literature:

byproducts: H2; heating to 260°C; SiH4 introducing;

DOI:10.1021/ic50050a044

Reference yield:

dibromochlorosilane (82146-27-8) + trimethylstannane (1631-73-8) → dibromosilane (13768-94-0) + chlorosilane (13966-57-9,13465-78-6) + Dichlorosilane (4109-96-0)

Guidance literature:

In neat (no solvent); condensing of equimolar amts. of tinhydride and SiClHBr2 (trace of SiCl2HBr present) into cold finger, reaction at room temp. (30 min); further products; not isolated; IR spectroscopy;

upstream raw materials:

monosilane

dibromochlorosilane

trimethylstannane

bromine

Downstream raw materials:

silica gel

Refernces

• 1、 Hollandsworth,Ingle,Ring. "Halogenation of silanes by silver chloride and silver bromide". . p. 844 - 845. Retrieved 2007/10/05.