Caesium triiodide

Caesium triiodide

Identifiers
CAS Number	12297-72-2  Y
3D model (JSmol)	Interactive image
ChemSpider	13753323
EC Number	625-701-4
PubChem CID	23717889
CompTox Dashboard (EPA)	DTXSID60747909
InChI InChI=1S/Cs.I3/c;1-3-2/q+1;-1 Key: PSDVEXXHXQVSQT-UHFFFAOYSA-N
SMILES I[I-]I.[Cs+]
Properties
Chemical formula	CsI3
Molar mass	513.61886 g·mol−1
Appearance	purple [1]
Melting point	77 °C (decomposes) [2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Caesium triiodide is an inorganic compound with chemical formula Cs⁺ [ I₃]⁻. It can be prepared by slow volatilization and crystallization of caesium iodide and iodine in aqueous ethanol solution. ^[3]

It undergoes a phase transition from Pnma to P-3c1 under high pressure, and its structure changes from layered to 3D. ^[4]

References

1. Ronald Rich (22 December 2007). Inorganic Reactions in Water. Springer. p. 472. ISBN   978-3-540-73962-3. Archived from the original on 2022-09-12. Retrieved 2022-09-12.
2. G.S. Harris, J.S. McKechnie (Jan 1982). "Thermogravimetric analysis and dissociation pressure of caesium trihalides" . Polyhedron. 1 (2): 215–216. doi:10.1016/S0277-5387(00)80991-2. Archived from the original on 2018-06-09. Retrieved 2022-09-09.
3. Richard M. Bozorth, Linus Pauling (Jun 1925). "The Crystal Structures of Cesium Tri-Iodide and Cesium Dibromo-Iodide" . Journal of the American Chemical Society. 47 (6): 1561–1571. doi:10.1021/ja01683a009. ISSN   0002-7863. Archived from the original on 2022-09-09. Retrieved 2022-09-09.
4. Tomasz Porȩba, Stefano Racioppi, Gaston Garbarino, Wolfgang Morgenroth, Mohamed Mezouar (2022-07-18). "Investigating the Structural Symmetrization of CsI 3 at High Pressures through Combined X-ray Diffraction Experiments and Theoretical Analysis" . Inorganic Chemistry. 61 (28): 10977–10985. doi:10.1021/acs.inorgchem.2c01690. ISSN   0020-1669. PMID   35792580. S2CID   250313558. Archived from the original on 2022-09-09. Retrieved 2022-09-09.