Molybdenum(IV) bromide

Molybdenum(IV) bromide
Names
	Other names molybdenum tetrabromide
Identifiers
CAS Number	13520-59-7;
3D model (JSmol)	Interactive image;
ChemSpider	9103085;
PubChem CID	dihydrate: 139031385;
CompTox Dashboard (EPA)	DTXSID00448625 ;
	SMILES ....;
Properties
Chemical formula	Br4Mo
Molar mass	415.57 g·mol−1
Appearance	black solid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Molybdenum(IV) bromide, also known as molybdenum tetrabromide, is the inorganic compound with the formula MoBr₄. It is a black solid. MoBr₄ has been prepared by treatment of molybdenum(V) chloride with hydrogen bromide:

2 MoCl₅ + 10 HBr → 2 MoBr₄ + 10 HCl + Br₂

The reaction proceeds via the unstable molybdenum(V) bromide, which releases bromine at room temperature.^[1]

Molybdenum(IV) bromide can also be prepared by oxidation of molybdenum(III) bromide with bromine.^[2]

References

^ Calderazzo, Fausto; Maichle-Mössmer, Cäcilie; Pampaloni, Guido; Strähle, Joachim (1993). "Low-Temperature Syntheses of Vanadium(III) and Molybdenum(IV) Bromides by Halide Exchange". J. Chem. Soc., Dalton Trans. (5): 655–658. doi:10.1039/DT9930000655.
^ Georg Brauer (Hrsg.) u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0, S. 1537.

Zdroj:https://en.wikipedia.org?pojem=Molybdenum(IV)_bromide
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[1] Calderazzo, Fausto; Maichle-Mössmer, Cäcilie; Pampaloni, Guido; Strähle, Joachim (1993). "Low-Temperature Syntheses of Vanadium(III) and Molybdenum(IV) Bromides by Halide Exchange". J. Chem. Soc., Dalton Trans. (5): 655–658. doi:10.1039/DT9930000655.

[brauer-2] Georg Brauer (Hrsg.) u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0, S. 1537.

[1]

[2]

v t e Molybdenum compounds
Mo(0)	Mo(CO)₆ Mo₃P
Mo(II)	MoBr₂ MoCl₂ MoI₂ MoSi₂
Mo(III)	MoBr₃ MoCl₃ MoI₃ Mo₂O₃ Mo₂(OtBu)₆ MoP
Mo(IV)	MoBr₄ MoCl₄ MoF₄ MoO₂ MoS₂ MoSe₂ MoTe₂ MoP₂ MoAs₂
Mo(V)	MoCl₅ MoF₅ Mo₂O₅
Mo(VI)	Molybdates Molybdic acid MoO₃ MoCl₆ MoOF₄ MoOCl₄ MoF₂O₂ MoO₂Cl₂ MoF₆ MoS₃