Gallium(III) iodide

Gallium(III) iodide
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Names
	Other names gallium triiodide
Identifiers
CAS Number	Page Template:Plainlist/styles.css has no content. 13450-91-4 ;
3D model (JSmol)	Page Template:Plainlist/styles.css has no content. Interactive image;
ChemSpider	Page Template:Plainlist/styles.css has no content. 75316 ;
EC Number	Page Template:Plainlist/styles.css has no content. Template:Chembox ECNumber/format; Template:Chembox ECNumber/format; Template:Chembox ECNumber/format; Template:Chembox ECNumber/format; Template:Chembox ECNumber/format; Template:Chembox ECNumber/format;
PubChem CID	Page Template:Plainlist/styles.css has no content. 83478;
RTECS number	Page Template:Plainlist/styles.css has no content. Template:Chembox RTECS/format; Template:Chembox RTECS/format; Template:Chembox RTECS/format; Template:Chembox RTECS/format; Template:Chembox RTECS/format; Template:Chembox RTECS/format;
	InChI InChI=1S/Ga.3HI/h;31H/q+3;;;/p-3 Key: DWRNSCDYNYYYHT-UHFFFAOYSA-K ; InChI=1/Ga.3HI/h;31H/q+3;;;/p-3 Key: DWRNSCDYNYYYHT-DFZHHIFOAW;
	SMILES I[Ga](I)I;
Properties
Chemical formula	GaI3
Molar mass	450.436 g/mol
Appearance	light yellow powder
Density	4.5 g/cm3
Melting point	212 °C (414 °F; 485 K)
Boiling point	340 °C (644 °F; 613 K)
Solubility in water	decomposes
Magnetic susceptibility (χ)	−149.0·10−6 cm3/mol
Thermochemistry
Heat capacity (C)	100 J/(mol·K)
Std molar; entropy (S⦵298)	205.0 J/(mol·K)
Std enthalpy of; formation (ΔfH⦵298)	−238.9 kJ/mol
Hazards
NFPA 704 (fire diamond)	Page Template:NFPA 704 diamond/styles.css has no content. 4 0 1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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Template:Chembox Footer/tracking Template:Short description

Gallium(III) iodide is the inorganic compound with the formula Ga I₃. A yellow hygroscopic solid, it is the most common iodide of gallium.^[3] 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, with a diborane structure.^[4] When vaporized, its forms GaI₃ molecules of D_3h symmetry where the Ga–I distance is 2.458 Angstroms.^[5]

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.^[6]^[7]

References

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^ ^a ^b ^c Haynes, p. 4.63
^ Haynes, p. 5.20
^ Page Module:Citation/CS1/styles.css has no content.Donges, E. (1963). "Gallium(III) Iodide". In Brauer, G. (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. Vol. 1. NY, NY: Academic Press. p. 846.
^ Page Module:Citation/CS1/styles.css has no content.Brünig, C.; Locmelis, S.; Milke, E.; Binnewies, M. (2006). "Chemischer Transport fester Lösungen. 27. Mischphasenbildung und chemischer Transport im System Zn Se/Ga As". Zeitschrift für Anorganische und Allgemeine Chemie. 632 (6): 1067–1072. doi:10.1002/zaac.200600008.
^ Haynes, p. 9.23
^ Page Module:Citation/CS1/styles.css has no content.Baker, Robert J.; Jones, Cameron (2005). ""GaI": A versatile reagent for the synthetic chemist". Dalton Trans (8): 1341–1348. doi:10.1039/b501310k. hdl:2262/69572. PMID 15824768.
^ Page Module:Citation/CS1/styles.css has no content.Green, Shaun P.; Jones, Cameron; Stasch, Andreas; Rose, Richard P. (2007). "'GaI': A new reagent for chemo- and diastereoselective C–C bond forming reactions". New J. Chem. 31: 127–134. doi:10.1039/b613669a.