Chromium(II) iodide

Chromium(II) iodide
Names
	Other names chromous iodide
Identifiers
CAS Number	13478-28-9;
3D model (JSmol)	Interactive image;
ChemSpider	13318420;
PubChem CID	18626753;
CompTox Dashboard (EPA)	DTXSID20595261;
	InChI InChI=1S/Cr.2HI/h;2*1H/q+2;;/p-2 Key: BMSDTRMGXCBBBH-UHFFFAOYSA-L;
	SMILES [Cr+2].[I-].[I-];
Properties
Chemical formula	CrI2
Molar mass	305.8050 g·mol−1
Appearance	black deliquescent solid
Density	5.196 g/cm3
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Chromium(II) iodide is the inorganic compound with the formula CrI₂. It is a black solid. The compound is made by thermal decomposition of chromium(III) iodide. It adopts the cadmium iodide structure, with ribbon-like strands formed of interconnected square planar CrI₄ units which share iodide ligands.[1][2]

References

Tracy, J. W.; Gregory, N. W.; Stewart, J. M.; Lingafelter, E. C. (1962). "The crystal structure of chromium(II) iodide". Acta Crystallographica. 15 (5): 460–463. doi:10.1107/S0365110X62001152.
Vest, Brian; Hermann, Andreas; Boyd, Peter D. W.; Schwerdtfeger, Peter (2010). "Nucleation of Antiferromagnetically Coupled Chromium Dihalides: From Small Clusters to the Solid State". Inorganic Chemistry. 49 (7): 3169–3182. doi:10.1021/ic901949a.

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[1] Tracy, J. W.; Gregory, N. W.; Stewart, J. M.; Lingafelter, E. C. (1962). "The crystal structure of chromium(II) iodide". Acta Crystallographica. 15 (5): 460–463. doi:10.1107/S0365110X62001152.

[2] Vest, Brian; Hermann, Andreas; Boyd, Peter D. W.; Schwerdtfeger, Peter (2010). "Nucleation of Antiferromagnetically Coupled Chromium Dihalides: From Small Clusters to the Solid State". Inorganic Chemistry. 49 (7): 3169–3182. doi:10.1021/ic901949a.