Brometo de vanรกdio(III)
Nomes
Nome IUPAC Brometo de vanรกdio(III)
Outros nomes Tribrometo de vanรกdio
Identificadores
Nรบmero CAS 13470-26-3
PubChem 83509
ChemSpider 11476059
Nรบmero RTECS YW2750000
SMILES
ย 
  • [V+3].[Br-].[Br-].[Br-]
InChI
ย 
  • InChI=1/3BrH.V/h3*1H;/q;;;+3/p-3
    Key:ZOYIPGHJSALYPY-DFZHHIFOAP
Propriedades
Fรณrmula quรญmica VBr3
Massa molar 290.654 g/mol
Aparรชncia Gray-brown solid
Densidade 4 g/cm3, solid
Solubilidade em รกgua soluble
Solubilidade soluble in THF
(forms adduct)
Estrutura
Geometria de
coordenaรงรฃo 		octahedral
Compostos relacionados
Outros aniรตes/รขnions Cloreto de vanรกdio(III)
Outros catiรตes/cรกtions Cloreto de titรขnio(III)
compounds relacionados MoBr3
VCl2
VCl4
Pรกgina de dados suplementares
Estrutura e propriedades n, ฮตr, etc.
Dados termodinรขmicos Phase behaviour
Solid, liquid, gas
Dados espectrais UV, IV, RMN, EM
Exceto onde denotado, os dados referem-se a
materiais sob condiรงรตes normais de temperatura e pressรฃo.
Referรชncias e avisos gerais sobre esta caixa.
Alerta sobre risco ร  saรบde.


Brometo de vanรกdium(III)ย ou tribrometo de vanรกdio, รฉ um composto quรญmico inorgรขnico de fรณrmula VBr3. No estado sรณlido, forma um polรญmero cujos monรดmeros possuem uma geometria octaรฉdrica com รญons de vanรกdio(III) ligados por seis brometos.ย 

VBr3 pode ser preparado pelo tratamento do VCl4 com HBr:

2 VCl4 + 8 HBr โ†’ 2 VBr3 + 8 HCl + Br2

A reaรงรฃo acontece via brometo de vanรกdio(IV), VBr4, que libera Br2 a temperatura ambiente.[1]

Assim comoย VCl3, VBr3ย forma complexos vermelhos solรบveis com o dimetoxietano e com oย THF.[2]

Soluรงรตes aquosas preparadas a partir do VBr3ย  contรฉm o cรกtion [VBr2(H2O)4]+.[3]

Referรชncias

editar
  1. โ†‘ Calderazzo, F.; Maichle-Mossmer, C.; Pampaloni, G. and Strรคhle, J., "Low-temperature Syntheses of Vanadium(III) and Molybdenum(IV) Bromides by Halide Exchange", Journal of the Chemical Society, Dalton Transactions, 1993, pages 655-8.
  2. โ†‘ G. W. A. Fowles, G. W. A.; Greene, P. T.; Lester, T. E. "Ether Complexes of Tervalent Titanium and Vanadium" J. inorg, nucl. Chem., 1967. Vol. 29. pp. 2365 to 2370.
  3. โ†‘ Donovan, W. F.; Smith, P. W. "Crystal and Molecular Structures of Aquahalogenovanadium(1ii) Complexes. Part 1. X-Ray Crystal Structure of trans-Tetrakisaquadibromovanadium(III) Bromide Dihydrate and the lsomorphous Chloro-compound" Journal of the Chemical Society, Daltor Transactions." 1975, pages 894-896.

๐Ÿ“š Artikel Terkait di Wikipedia

Brometo de vanรกdio(II)

377-85. Vanadium dibromide at WebElements McCarley, Robert E.; James W. (1 de janeiro de 1964). ยซThe Vapor Pressures of Vanadium(II) Chloride, Vanadium(III)

Vanรกdio

ยซWebElements.com - Vanadiumยป (em inglรชs)ย  ยซEnvironmentalChemistry.com - Vanadiumยป (em inglรชs)ย  ยซMineral Information Institute - Vanadiumยป (em inglรชs)ย 

Nitreto de vanรกdio(III)

(2006). ยซStudy of the wear behavior of ion nitrided steels with different vanadium contentsยป. Surface and Coatings Technology. 200 (20โ€“21). 6101ย pรกginas.

Sal do Himalaia

version because it contains traces of potassium, silicon, phosphorus, vanadium, and iron. The amounts are enough to color the crystals, giving them a

Sulfato de vanadila

Otto; Oskar Roidl; Heinz Roller; Siegfried Sattelberger (2005). ยซVanadium and Vanadium Compoundsยป. Ullmann's Encyclopedia of Industrial Chemistry. Weinheim:

Cloreto de vanรกdio(II)

estado fundamental, semelhante ao Cr(III). Young, R. C.; Smith, M. E. "Vanadium(II) Chloride" Inorganic Syntheses, 1953, volume IV, page 126-127.doi:10

Deficiรชncia de vanรกdio

http://www.healthy.net/Health/Article/Vanadium/1812 http://www.vitalhealthzone.com/nutrition/minerals/vanadium.html http://www.life-enthusiast

Carbeto de vanรกdio

Andreas Otto, Oskar Roidl, Heinz Roller, Siegfried Sattelberger "Vanadium and Vanadium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2005