Iodine monobromide
Names
IUPAC name
Iodine monobromide
Other names
Iodine bromide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.236
UNII
  • InChI=1S/BrI/c1-2 ☒N
    Key: CBEQRNSPHCCXSH-UHFFFAOYSA-N ☒N
  • InChI=1/BrI/c1-2
    Key: CBEQRNSPHCCXSH-UHFFFAOYAO
  • BrI
Properties
IBr
Molar mass 206.904 g/mol
Appearance dark red solid
Melting point 42 °C (108 °F; 315 K)
Boiling point 116 °C (241 °F; 389 K)
Related compounds
Other anions
 iodine monochloride, iodine monofluoride
Related interhalogen compounds
 Iodine monochloride
Iodine monofluoride
Bromine monochloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Iodine monobromide is an interhalogen compound with the formula IBr. It is a dark red solid that melts near room temperature.[1] Like iodine monochloride, IBr is used in some types of iodometry. It serves as a source of I+. Its Lewis acid properties are compared with those of ICl and I2 in the ECW model. It can form CT adducts with Lewis donors.[2]

Iodine monobromide is formed when iodine and bromine are combined in a chemical reaction:.[3]

I2 + Br2 → 2 IBr

References

  1. ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
  2. ↑ Aragoni, M. Carla; Arca, Massimiliano; Demartin, Francesco; Devillanova, Francesco A.; Garau, Alessandra; Isaia, Francesco; Lippolis, Vito; Verani, Gaetano (2005-06-16). "DFT calculations, structural and spectroscopic studies on the products formed between IBr and N,N′-dimethylbenzoimidazole-2(3H)-thione and -2(3H)-selone". Dalton Transactions (13): 2252–2258. doi:10.1039/B503883A. ISSN 1477-9234. PMID 15962045.
  3. ↑ M. Schmeisser (1963). "Iodine bromide IBr". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. Vol. 1. NY, NY: Academic Press. p. 291.


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