Tetrabromosilane

Base Information

• Chemical Name: Tetrabromosilane
• CAS No.: 7789-66-4
• Molecular Formula: Br4Si
• Molecular Weight: 347.702
• European Community (EC) Number: 232-182-4
• UNII: 8GAC9YWL42
• DSSTox Substance ID: DTXSID6064872
• Nikkaji Number: J95.308C
• Wikipedia: Silicon(IV) bromide,Silicon tetrabromide,Silicon_tetrabromide
• Wikidata: Q2012159
• Mol file: 7789-66-4.mol

Synonyms:Tetrabromosilane;7789-66-4;Silicon(IV) bromide;Silicon tetrabromide;Silicon bromide;SiBr4;Silane, tetrabromo-;Silicon bromide (SiBr4);UNII-8GAC9YWL42;8GAC9YWL42;EINECS 232-182-4;MFCD00049530;perbromosilane;Br4Si;Br4-Si;Silicon( cento)bromide;Silicon tetrabromide, 99%;DTXSID6064872;SILICON TETRABROMIDE [MI];AKOS025295753;Silicon(IV) bromide (tetrabromosilane);Silicon(IV) bromide, (99.99% Si) PURATREM;Silicon tetrabromide, 99.995% trace metals basis;Q2012159;Silicon(IV) bromide, Tetrabromosilane, 7789-66-4

Chemical Property of Tetrabromosilane

Chemical Property:

• Melting Point: 5 °C(lit.)
• Refractive Index: 1.5627
• Boiling Point: 154 °C at 760 mmHg
• Flash Point: 154°C
• PSA: 0.00000
• Density: 2.971 g/cm³
• LogP: 3.00160
• Sensitive.: Moisture Sensitive
• Water Solubility.: decomposed in water to HBr, silicic acid, with evolution of heat [MER06]
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 347.64618
• Heavy Atom Count: 5
• Complexity: 19.1

Purity/Quality:

98%,99%, ^*data from raw suppliers

Silicon(IV) bromide, 99+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C
• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-27-28-36/37/39

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: [Si](Br)(Br)(Br)Br
• Uses: Silicon tetrabromide (SiBr4) may be used to prepare photoluminescent silicon nanocrystals by chemical reduction with alkaline metals.

Technology Process of Tetrabromosilane

There total 33 articles about Tetrabromosilane 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: 99.4%

phenyltribromosilane (10581-00-7) + hydrogen bromide (10035-10-6,12258-64-9) → tetrabromosilane (7789-66-4)

Guidance literature:

With aluminum tri-bromide; In benzene; byproducts: PhH; 12 h, room temp.; 5-6 h, 70°C; distn.;

DOI:10.1002/zaac.19966220624

Reference yield: 42.0%

silicon (7440-21-3) → Diphenyldibromsilan (4072-00-8) + phenyltribromosilane (10581-00-7) + tetrabromosilane (7789-66-4)

Guidance literature:

With C₆H₅Br; copper; In neat (no solvent); Si-Cu (8:2) and C6H5Br at about 420°C;;

Reference yield:

bromo trichloro silane (13465-74-2) → tetrachlorosilane (10026-04-7,53609-55-5) + tetrabromosilane (7789-66-4)

Guidance literature:

In neat (no solvent); passing SiBrCl3 through a tube, heated at 600 °C;;

DOI:10.1021/ja01234a027

upstream raw materials:

tetrachlorosilane

hexabromobenzene

silicon

hydrogen bromide

Downstream raw materials:

tribromosilane

dimethyltin dibromide

trimethyltin bromide

monosilane

Refernces

• 1、 Teichmann, Julian,K?stler, Benedikt,Tillmann, Jan,Moxter, Maximilian,Kupec, Robin,Bolte, Michael,Lerner, Hans-Wolfram,Wagner, Matthias. "Halide-Ion Diadducts of Perhalogenated Cyclopenta- and Cyclohexasilanes". . p. 956 - 962. Retrieved 2018.
• 2、 Lebedev, Yury N.,Das, Ujjal,Chernov, Oleg,Schnakenburg, Gregor,Filippou, Alexander C.. "[2+2+1]cycloadditions of bis(dialkylamino)acetylenes with SiI 2(Idip): Syntheses and reactivity studies of unprecedented 2,3,4,5-tetraamino-1 H-siloles". . p. 9280 - 9289. Retrieved 2014/08/05.