Gallium(III) iodide explained

Gallium(III) iodide is the inorganic compound with the formula GaI₃. A yellow hygroscopic solid, it is the most common iodide of gallium.^[1] In the chemical vapor transport method of growing crystals of gallium arsenide uses iodine as the transport agent. In the solid state, it exists as the dimer Ga₂I₆.^[2] When vaporized, its forms GaI₃ molecules of D_3h symmetry where the Ga–I distance is 2.458 Angstroms.^[3]

Gallium triiodide can be reduced with gallium metal to give a green-colored gallium(I) iodide. The nature of this species is unclear, but it is useful for the preparation of gallium(I) and gallium(II) compounds.^{[4] [5]}

See also

• Gallium halides

Cited sources

• Book: Haynes. Haynes, William M. . 2016. . 97th . . 9781498754293.

Notes and References

1. Book: Donges, E. . Gallium(III) Iodide. Handbook of Preparative Inorganic Chemistry, 2nd Ed. . Brauer, G. . Academic Press. 1963. NY, NY. 1. 846.
2. 10.1002/zaac.200600008. Chemischer Transport fester Lösungen. 27. Mischphasenbildung und chemischer Transport im System Zn Se/Ga As. 2006. Brünig. C.. Locmelis. S.. Milke. E.. Binnewies. M.. Zeitschrift für Anorganische und Allgemeine Chemie. 632. 6. 1067–1072.
3. Haynes, p. 9.23
4. 10.1039/b501310k. "GaI": A versatile reagent for the synthetic chemist . 2005 . Baker . Robert J. . Jones . Cameron . Dalton Trans . 8 . 1341–1348 . 15824768 . 2262/69572 . free .
5. 10.1039/b613669a. 'GaI': A new reagent for chemo- and diastereoselective C–C bond forming reactions . 2007 . Green . Shaun P. . Jones . Cameron . Stasch . Andreas . Rose . Richard P. . New J. Chem. . 31 . 127–134 .