Iodine trichloride

Iodine trichloride

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IUPACName = iodine trichloride
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Section2 = Chembox Properties
Formula = I2Cl6
MolarMass = 466.5281 g/mol
Appearance = yellow solid
Density =
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Iodine trichloride is a compound of iodine and chlorine. It is bright yellow and in the solid state is present as a planar dimer I2Cl6, Cl2I(μ-Cl)2ICl2, with two bridging Cl atoms [cite journal | author = K. H. Boswijk and E. H. Wiebenga | year = 1954 | title = The crystal structure of I2Cl6 (ICl3) | journal = Acta Crystallographica | volume = 7 | part = 5 | issue = | pages = 417–423 | doi = 10.1107/S0365110X54001260 ] .

It can be prepared by reacting iodine with an excess of liquid chlorine at −70 °C. In the melt it is conductive, which may indicate dissociationGreenwood&Earnshaw] :

:I2Cl6 → ICl2+ + ICl4

References


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