Thallium halide

(Redirected from Thallium(III) halide)

The thallium halides come in two oxidation states: monohalides, where thallium has the oxidation state +1, and trihalides, where thallium generally has oxidation state +3.


Thallium(I) iodide has a distorted rock salt structure

The monohalides all contain thallium with oxidation state +1.


Thallium(III) halides are very rare. Some of them are unstable. The thallium(III) iodide does not form. They are quite different to aluminium, gallium and indium trihalides.


  1. U.Haussermann, P.Berastegui, S.Carlson, J.Haines, and J.Leger Angewandte Chemie, 31, pp. 4760 (2001)