Iodine monobromide is an interhalogen compound with the formula IBr. It is a dark red solid that melts near room temperature. 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.
Iodine monobromide is formed when iodine and bromine are combined in a chemical reaction:.
I2 + Br2 → 2 IBrReferences
Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8. 978-0-08-037941-8 ↩
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. https://pubs.rsc.org/en/content/articlelanding/2005/dt/b503883a ↩
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. ↩