Iodine monobromide monochloride

The addition of iodine electrophiles, fert-butyl hypoiodite (t-BuOI) in the presence of BF3, acetyl hypoiodite (AcOI), iodine monochloride (IC1) and iodine monobromide (IBr), to 1,3-butadiene gives always, under ionic conditions, mixtures of 1,2- and 1,4-Markovnikov adducts (equation 57). These mixtures are the kinetic products, since rearrangement to the thermodynamically stable products occurs under the appropriate conditions86. 

Interhalogen compounds may lead to product mixtures. The products formed when 1-aminopyrazoles were treated with iodine monobromide were a 17 73 ratio of 4- and 5-bromo derivatives with iodine monochloride there was an 81% yield of the 4-iodo product with only traces of the chloro analogue [86JCS(P 1)1249]. 

V-9.1 Bromine Monochloride, 191 V-9.2 Iodine Monochloride, 191 V-9.3 Iodine Monobromide, 191 V-10 Alkali Iodides, 192... 

Chlorine monofluoride, CIF Chlorine trifluoride, CIF3 Bromine monofluoride, BrF Bromine trifluoride, BrF3 Bromine pentafluoride, BrF5 Bromine monochloride, BrCI Iodine trifluoride, IF3 Iodine pentafluoride, IF5 Iodine heptafluoride, IF7 Iodine monobromide, IBr Iodine monochloride, ICI Iodine pentabromide, IBr5 Iodine tribromide, IBr3 Iodine trichloride, ICI3 Iodine pentachloride, ICI5... 

Diorgano tellurium diiodides, but not dibromides and dichlorides, form 1 1 molecular adducts with iodine, iodine monochloride, and iodine monobromide. 

It is an unstable compound, but it does exist in equilibrium with the elements. Iodine monochloride is much more stable, and it is prepared by the reaction of liquid chlorine with solid iodine in stoichiometric quantities. Two forms of IC1 are known a reddish brown solid and the more stable ruby red needles that form on prolonged standing. Iodine monobromide is also prepared by combination of the elements. 

Like the other halogens, iodine is an active element. However, it is less active than the three halogens above it in the periodic table. Its most common compounds are those of the alkali metals, sodium, and potassium. But it also forms compounds with other elements. It even forms compounds with the other halogens. Some examples are iodine monobromide (IBr), iodine monochloride (ICl), and iodine pentafluoride (IF5). 

V. Braun reaction Cyanogen bromide. Phosphorus tribromide. Piperidine. Thionyl chloride. Bromination Aluminum bromide. Aluminum chloride. Boron tribromide. Bromine chloride. N-Bromocaprolactam. N-Bromosuccinimide. Bromotrichloromethane. Cupric bromide. Dibenzoyl peroxide. l,3-Dibromo-5,5-diraethylhydantoin. 1,2-Dibromotetrachloromethane. HBr-scavengers acetamide and potassium chlorate. Iodine. Iodine monobromide. Iron. Mercuric acetate. Phenyl trimethylammonium perbromide. Phosphorus trichloride. Pyridine. Pyridine perbromide. Pyridinium hydrobromide perbromide. Silver sulfate. Sodium acetate. Sodium hypobromite. Sulfur. Sulfur monochloride. Tetramethylaramonium tribromide. M-Tribromoacetophenone. Trichloromethane sulfonyl bromide. Trilluoroacetyl hypobromite. Triphenylphosphine dibromide. 

N(2-Indolylethyl)glutarimide, 871 Inosine, 740-741 N-oxide, 754 Inositol, 179 -2-carboxylic acid, 326 derivatives, 740 hexamethyl ether, 683 Inositols, 256 Iodic acid, 496 Iodine, 495-500,1107, 1281 Iodine azide, 500-501 Iodine isocyanate, 501 Iodine monobromide, 501-502 Iodine monochloride, 258, 502 Iodine-Morpholine complex, 502-SOS Iodine pentafluoride, 503 Iodine-Pyridine, 503-504 Iodine-Silver salts, 504 lodoacetamide, 504-505 lodoacetone, 1188... 

Many interhalogen compounds explode on contact with potassium. These include chlorine trilluoride, iodine monochloride, iodine monobromide, iodine pentalluoride, and others. A violent explosion occurs when chlorine monoxide comes in contact with potassium. Potassium bums spontaneously with fluorine, chlorine, and bromine vapor. Its mixture with liquid bromine can explode on impact, and mixture with iodine ignites. 

Detailed NMR studies have been carried out on l-selena-4-oxane and the adducts formed in the presence of iodine monochloride, iodine monobromide, chlorine, bromine, and iodine <1999JOC2630>. In deuterated chloroform solution the l-selena-4-oxane molecular complex 29 affords equimolar amounts of bipyramidal adduct 30 and the molecular complex 31 (Equation 1). No such mixture was observed in the solid state. When NMR studies were carried out on the corresponding bromine complex 32, an equilibrium between the complex 32 and adducts 33 and 31 was observed (Equation 2). 

Boyle, P.D., Christie, J., Dyer, T., Godfrey, S.M., Howson, I.R., McArthur, C., Omar, B., Pritchard, R.G. and Williams, G.R., Further structural motifs from the reactions of thioamides with diiodine and the interhalogens iodine monobromide and iodine monochloride An FT-Raman and crystallographic study, J. Chem. Soc. Dalton Trans. (18), 3106-3112 (2000). 

Crystalline nitrogen triiodide can be prepared by reaction of aqueous iodine monochloride (ICl) alkalized by potassium hydroxide with aqueous ammonia. On cooling, nitrogen triiodide forms as blackish-brown shiny needles, up to 2 mm long [54, 66], Nitrogen triiodide is also formed by addition of ammonia to alkaline solutions of potassium hypoiodite (KIO) [54]. Other iodizing agents such as iodine monobromides or dibromoiodides can be used as well [46]. 

Remark We shall see in iodatometry that iodine (+1) may be stabilized in other forms than as hypoiodous acid or hypoiodite ions. Indeed, the species ICl (iodine monochloride), ICl2 (iodine dichloride), IBr (iodine monobromide), IBr2 (iodine dibromide), and ICN (cyanogen iodide) exist. 

The methods for determining the iodine value of lipids are Hanus method and Wijs method. The lipid to be analyzed is weighed and dissolved in a suitable organic solvent, to which a known excess of iodine monobromide (or the monochloride) is added. Some of the IBr reacts with the double bonds in the imsaturated lipids, whereas the rest remains unreacted ... 

Drepaul, L, Fagundez, V, Guiterrez, F. et al. (1996) Thermochemistry of molecular complexes of iodine monochloride, iodine monobromide, and bromine with benzene and benzene derivatives. J. Org. Chem., 61,3571-3572. 

Klaboe, P. (1962) Spectroscopic smdies of charge transfer complexes. IV. Benzonitrile and iodine, bromine, iodine monochloride and iodine monobromide. J. Am. Chem. Soc., 84, 3458-3460. 

Augdahl, E. and Klaeboe, P. (1965) Spectroscopic studies of charge-transfer complexes. XIII. Dimethylcyanamide and iodine, iodine monochloride and iodine monobromide. Acta Chem. Scand, 19, 807-816. 

Raby, M.C. and Buxeraud, 1. (1979) Study of molecular interactions by electronic spectroscopy. Complexation by charge transfer between ethyl isothiocyanate and iodine, iodine monobromide, and iodine monochloride. Spectrochim. Acta, Part A, 35A, 275-279. 

---