Vanadium;tribromide

Base Information

• Chemical Name: Vanadium;tribromide
• CAS No.: 13470-26-3
• Molecular Formula: Br3V
• Molecular Weight: 290.654
• UNII: KB5CDP6ZK3
• Nikkaji Number: J95.248F
• Mol file: 13470-26-3.mol

Synonyms:

Chemical Property of Vanadium;tribromide

Chemical Property:

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: g/cm³
• LogP: 2.53680
• Sensitive.: Moisture Sensitive
• Water Solubility.: Soluble in water and tetrahydrofuran.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 289.69692
• Heavy Atom Count: 4
• Complexity: 0

Purity/Quality:

99% ^*data from raw suppliers

Vanadium(III) bromide (99.7%-V) ^*data from reagent suppliers

Safty Information:

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-36/37/39-45-27-22

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: [V].[Br-].[Br-].[Br-]
• Uses: Vanadium(III) bromide is used as a catalyst for C(sp3)-H fluorination reactions especially the benzylic fluorination.

Technology Process of Vanadium;tribromide

There total 24 articles about Vanadium;tribromide 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: 99.0%

hydrogen bromide (10035-10-6,12258-64-9) + vanadiumtetrachloride (7632-51-1) → vanadium(III) bromide (13470-26-3)

Guidance literature:

In n-heptane; cooling VCl4 in heptane (100ml) at ca -35°C; connecting to a vac. line and to a cylinder of HBr; introduction of HBr (color change from orange-brown to bright violet); repeating several times vac./HBr procedure, 5h; room temp., stirring, 15h;; filtration of formed ppt.; washing with heptane; drying in vac.; elem. anal.;;

DOI:10.1039/DT9930000655

Reference yield: 88.0%

vanadium hexacarbonyl (14024-00-1) → vanadium(III) bromide (13470-26-3)

Guidance literature:

With hydrogen bromide; In n-heptane; byproducts: carbon monoxide, dihydrogen; under Ar or N2, exclusion of light, at -78°C, warmed to -40°C; pptn. filtered off at room temp.;

DOI:10.1016/S0277-5387(00)80722-6

Reference yield: 12.0%

vanadium (7440-62-2) + iodine(I) bromide (7789-33-5) → vanadium(III) bromide (13470-26-3)

Guidance literature:

In neat (no solvent); refluxing vanadium powder in molten IBr for 0.5h;; contains unreacted vanadium powder; extraction with CCl4 at 45°C;;

DOI:10.1007/BF00899513

upstream raw materials:

disulphur dibromide

bromine

bis(mesitylene)vanadium⁽⁰⁾

hydrogen bromide

Downstream raw materials:

{VBr2(N3S2)}(n)

vanadium(II) bromide

vanadium tetrabromide

bromine

Refernces

• 1、 Mccarley, Robert E.,Roddy, James W.,Berry, Keith O.. "Transport reactions of some vanadium(III) halides. Mixed halide formation". . p. 50 - 54. Retrieved 1964.
• 2、 Mccarley, Robert E.,Roddy, James W.. "Vaporization reactions of vanadium(III) bromide. Dissociation and disproportionation equilibria, and the formation of vanadium(IV) bromide". . p. 54 - 59. Retrieved 1964.
• 3、 Calderazzo, Fausto,Englert, Ulli,Pampaloni, Guido,Volpe, Manuel. "Redox reactions with bis(η6-arene) derivatives of early transition metals". . p. 3321 - 3332. Retrieved 2007/10/03.