Titanium(III) Iodide
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Titanium III Iodide
Titanium(III) iodide
TiI3side-onview.jpg
Names
IUPAC name
Titanium(III) iodide
Other names
Titanium triiodide
Identifiers
3D model (JSmol)
Properties
I3Ti
Molar mass  g·mol-1
Appearance black-violet solid
Density 4.96 g·cm-3[1]
Related compounds
Other anions
Titanium(III) bromide
Titanium(III) chloride
Titanium(III) fluoride
Related compounds
Titanium(IV) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Titanium(III) iodide is an inorganic compound with the formula TiI3. It is a dark violet solid that is insoluble in solvents, except upon decomposition.

Preparation and structure

Titanium(III) iodide can be prepared by reaction of titanium with iodine:[2]

It can also be obtained by reduction of TiI4, e.g., with aluminium .[3]

In terms of its structure, the compound exists as a polymer of face-sharing octahedra. Above 323 K, the Ti---Ti spacing are equal, but below that temperature, the material undergoes a phase transition. In the low temperature phase, the Ti---Ti contacts are alternating short and long. The low temperature structure is similar to that of molybdenum tribromide.[1]

References

  1. ^ a b Joachim Angelkort, Andreas Schoenleber, Sander van Smaalen: Low- and high-temperature crystal structures of. In: Journal of Solid State Chemistry. 182, 2009, S. 525-531, doi:10.1016/j.jssc.2008.11.028.
  2. ^ F. Hein, S. Herzog "Molybdenum(III) Bromide" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 1407.
  3. ^ Catherine E. Housecroft, A. G. Sharpe (2005), Inorganic Chemistry (in German), Pearson Education, p. 601, ISBN 0-13039913-2

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Titanium(III)_iodide
 



 



 
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