Selenium dibromide
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| Names | |
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| IUPAC name
Bromo selenohypobromite
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| Systematic IUPAC name
Selenium dibromide | |
| Identifiers | |
3D model (JSmol)
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| Br2Se | |
| Molar mass | 238.779 g·mol−1 |
| Related compounds | |
Other anions
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Selenium dichloride, SeCl2 |
Other cations
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Sulfur dibromide, SBr2 |
Related compounds
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Selenium tetrabromide, SeBr4 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Selenium dibromide is a compound made of one selenium and two bromine atoms. It is unstable. No solid form of the compound has been discovered but it is a component of the equilibria in the vapour above selenium tetrabromide (SeBr4) and in nonaqueous solutions.[1] In acetonitrile solution, selenium reacts with SeBr4 to form an equilibrium mixture containing SeBr2, Se2Br2 and Br2.[2] This covalent compound has a bent molecular geometry in the gas phase.[3]
References
[edit]- ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 768, 771–772. ISBN 978-0-08-037941-8.
- ^ 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.
- ^ 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.