Niobium bromide (NbBr5)

Base Information

• Chemical Name: Niobium bromide (NbBr5)
• CAS No.: 13478-45-0
• Molecular Formula: Br5Nb
• Molecular Weight: 492.426
• European Community (EC) Number: 236-778-5
• DSSTox Substance ID: DTXSID6065505
• Wikipedia: Niobium(V) bromide
• Wikidata: Q2311164
• Mol file: 13478-45-0.mol

Synonyms:NbBr5;niobium pentabromide

Chemical Property of Niobium bromide (NbBr5)

Chemical Property:

• Melting Point: 150 °C
• Boiling Point: 361,6°C
• PSA: 0.00000
• Density: 4.360
• LogP: 4.22800
• Sensitive.: moisture sensitive
• Water Solubility.: soluble H2O, alcohol, ethyl bromide [KIR81]
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 491.49396
• Heavy Atom Count: 6
• Complexity: 37.1

Purity/Quality:

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

Niobium(V) bromide (99.9%-Nb) ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C
• Hazard Codes: C
• Statements: 20/21/22-34
• Safety Statements: 26-27-28-36/37/39-45

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Metals -> Metals, Inorganic Compounds
• Canonical SMILES: Br[Nb](Br)(Br)(Br)Br

Technology Process of Niobium bromide (NbBr5)

There total 20 articles about Niobium bromide (NbBr5) 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: 75.0%

niobium pentachloride (10026-12-7) + isopropyl bromide (75-26-3) → niobium pentabromide (13478-45-0)

Guidance literature:

byproducts: i-PrCl; Under Ar, treatment of NbCl5 at room temp. with i-PrBr, the solid partially dissolves, followed by pptn. of a red cryst. solid, stirring (15 h, room temp.).; Filtn., elem. anal.;

DOI:10.1039/DT9900002743

Reference yield: 0.3%

niobium(V) oxide + carbon tetrabromide (558-13-4) → niobium pentabromide (13478-45-0)

Guidance literature:

In neat (no solvent); heating NbBr5 and CBr4 in glass autoclave at 200°C for 72 hours;;

Reference yield:

Nb(5+)*Br(1-)*4(OC2H5)(1-)=NbBr(OC2H5)4 → niobium(V) ethoxide (3236-82-6) + niobium pentabromide (13478-45-0)

Guidance literature:

In neat (no solvent); heating;;

upstream raw materials:

bromine

hydrogen bromide

aluminium bromide

niobium pentachloride

Downstream raw materials:

sulfurous dibromide

triphenyl butyl phosphonium hexabromoniobate

NbBr₅(C₆H₅)3PS

NbBr₄(P(CH₃)2C₆H₅)3

Refernces

• 1、 Djordjevich, C.,Katovich, V.. "". . p. 1099 - 1109. Retrieved 1963.
• 2、 Druce, P. M.,Lappert, M. F.,Riley, P. N. K.. "". . . Retrieved 1967.
• 3、 Barr, W. M.. "". . p. 1668 - 1672. Retrieved 1908.
• 4、 Habermehl, Katja,Kleinke, Holger,Meyer, Gerd. "Crystal structure and physical properties of RbNBr11". . p. 50 - 53. Retrieved 2010.
• 5、 Nowak, Izabela,Page, Elizabeth M.,Rice, David A.,Richardson, Alan D.,French, Richard J.,Hedberg, Kenneth,Ogden, J. Steven. "Chalcogenide-halides of niobium (V). 1. Gas-phase structures of NbOBr3, NbSBr3, and NbSCl3. 2. Matrix infrared spectra and vibrational force fields of NbOBr3, NbSBr3, NbSCl3, and NbOCl3". . p. 1296 - 1305. Retrieved 2008/10/08.