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Selenium dibromide

From Wikipedia, the free encyclopedia
Selenium dibromide
Names
IUPAC name
Bromo selenohypobromite
Systematic IUPAC name
Selenium dibromide
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/Br2Se/c1-3-2
    Key: MNBLRJWKVLRTKV-UHFFFAOYSA-N
  • [Se](Br)Br
Properties
Br2Se
Molar mass238.779 g·mol−1
Related compounds
Otheranions
Selenium dichloride,SeCl2
Othercations
Sulfur dibromide,SBr2
Related compounds
Selenium tetrabromide,SeBr4
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Selenium dibromide is a compound made of oneselenium and twobromine atoms. It is unstable. No solid form of the compound has been discovered but it is a component of the equilibria in the vapour aboveselenium tetrabromide (SeBr4) and in nonaqueous solutions.[1] Inacetonitrile solution, selenium reacts withSeBr4 to form an equilibrium mixture containingSeBr2,Se2Br2 andBr2.[2] Thiscovalent compound has abent molecular geometry in the gas phase.[3]

References

[edit]
  1. ^Greenwood, Norman N.; Earnshaw, Alan (1997).Chemistry of the Elements (2nd ed.).Butterworth-Heinemann. pp. 768,771–772.doi:10.1016/C2009-0-30414-6.ISBN 978-0-08-037941-8.
  2. ^Steudel, Ralf; Jensen, Detlef; Baumgart, Frank (1990). "77Se-NMR and raman spectroscopic characterization of selenium dibromide (SeBr2) and its reaction with titanocene pentasulphide to give cyclic selenium sulphides of ring size 6, 7, 8, and 12".Polyhedron.9 (9):1199–1208.doi:10.1016/S0277-5387(00)86896-5.
  3. ^Shlykov, Sergey A.; Titov, Anton V.; Oberhammer, Heinz; Giricheva, Nina I.; Girichev, Georgiy V. (2008). "The molecular structure of selenium dibromide as determined by combined gas-phase electron diffraction–mass spectrometric experiments and quantum chemical calculations".Phys. Chem. Chem. Phys.10 (42):6438–6445.Bibcode:2008PCCP...10.6438S.doi:10.1039/B808071B.PMID 18972032.
Selenium compounds
Se(−II)
Se(0,I)
Se(I)
Se(II)
Se(III)
Se(IV)
Se(VI)
Se(IV,VI)
Salts and covalent derivatives of thebromide ion
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