Iodine trichloride

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Iodine trichloride
IUPAC name iodine trichloride
Properties
Molecular formula I2Cl6
Molar mass 466.5281 g/mol
Appearance yellow solid
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

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[1].

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 dissociation[2]:

I2Cl6 → ICl2+ + ICl4

[edit] References

  1. ^ K. H. Boswijk and E. H. Wiebenga (1954). "The crystal structure of I2Cl6 (ICl3)". Acta Crystallographica 7: 417–423. doi:10.1107/S0365110X54001260. 
  2. ^ Greenwood, N. N.; Earnshaw, A. (1997). Chemistry of the Elements, 2nd Edition, Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4.