Germanium tetrabromide

Base Information

• Chemical Name: Germanium tetrabromide
• CAS No.: 13450-92-5
• Molecular Formula: Br4Ge
• Molecular Weight: 392.206
• European Community (EC) Number: 236-612-1
• DSSTox Substance ID: DTXSID2065468
• Nikkaji Number: J95.194C
• Wikipedia: Germanium_tetrabromide,Germanium(IV) bromide
• Wikidata: Q4096871
• Mol file: 13450-92-5.mol

Synonyms:Germanium tetrabromide;Tetrabromogermane;13450-92-5;Germane, tetrabromo-;Germanium(IV) bromide;Germyl bromide;Germanium bromide;Germanium, tetrabromo-;EINECS 236-612-1;Germaniumtetrabromid;MFCD00016115;Br4Ge;perbromogermane;GeBr4;Br4-Ge;Germanium bromide (GeBr4);DTXSID2065468;LS-71214;Germanium(IV) bromide (99.99+%-Ge) PURATREM;Q4096871

Chemical Property of Germanium tetrabromide

Chemical Property:

• Appearance/Colour: solid
• Melting Point: 26.1 °C(lit.)
• Refractive Index: 1.6269
• Boiling Point: 186.5 °C(lit.)
• Flash Point: °C
• PSA: 0.00000
• Density: g/cm³
• LogP: 3.00160
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• Sensitive.: Moisture Sensitive
• Water Solubility.: It reacts in water.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 393.59043
• Heavy Atom Count: 5
• Complexity: 19.1

Purity/Quality:

99% ^*data from raw suppliers

Germanium(IV) bromide (99.99+%-Ge) PURATREM ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C
• Hazard Codes: C
• Statements: 14-34-37
• Safety Statements: 26-27-36-45-36/37/39

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: [Ge](Br)(Br)(Br)Br
• Description: Germanium (IV) bromide is a white solid with acidic smell. It reacts violently with water. It is soluble in pure ethanol, carbon tetrachloride, benzene and ether.1 It is used as a germanium source for uses compatible with bromides and in acidic condition. It is used as a chemical gent.2
• Uses: It is used as a chemical agent, as a laboratory chemical & for manufacturing of substances.

Technology Process of Germanium tetrabromide

There total 22 articles about Germanium tetrabromide 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: 96.0%

germanium (7440-56-4) + bromine (7726-95-6) → germanium tetrabromide (13450-92-5)

Guidance literature:

In neat (no solvent); under inert atm. mixt. Ge and Br2 was heated to 75°C for 3 days; excess Br2 was removed in vacuo;

DOI:10.1021/om100377n

Reference yield: 95.0%

dibromogermane dioxane + triphenylantimony dibromide (20265-30-9) → germanium tetrabromide (13450-92-5) + triphenylantimony (603-36-1)

Guidance literature:

In toluene; byproducts: dioxane; standing (room temperature, 24 h); liquid chromy.;

Reference yield: 90.0%

hydrogen bromide (10035-10-6,12258-64-9) + germanium dioxide → germanium tetrabromide (13450-92-5)

Guidance literature:

In hydrogen bromide; heating suspension of GeO2 in 48% HBr-soln. almost to boiling point, passing HBr into soln., boiling under refluxing;; sepn. of GeBr4-phase in separating-funnel, distillation, pumping off HBr at 26 °C, storing over H2O-free Na2CO3, fractional distillation;;

DOI:10.1021/ja01341a502

upstream raw materials:

germanium

bromine

triphenylantimony dibromide

1,1-dibromomethane

Downstream raw materials:

tetramethylgermane

germanium

(pentafluoro phenyl) tribromo germane

tetraethylgermane

Refernces

• 1、 Hlina, Johann,Baumgartner, Judith,Marschner, Christoph. "Polygermane building blocks". . p. 5289 - 5295. Retrieved 2010.
• 2、 Schnepf, Andreas,Koeppe, Ralf. "Synthesis of Germanium(I) bromide. A first step towards new Gemanium cluster compounds?". . p. 2914 - 2918. Retrieved 2002.
• 3、 Zelenina,Titov,Chusova. "Chemical equilibria in the gas phase of the Ge-Br system". . p. 43 - 46. Retrieved 2007/10/03.