Caesium triiodide

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Caesium triiodide
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 625-701-4
  • InChI=1S/Cs.I3/c;1-3-2/q+1;-1
    Key: PSDVEXXHXQVSQT-UHFFFAOYSA-N
  • I[I-]I.[Cs+]
Properties
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).

Caesium triiodide is an inorganic compound, with the chemical formula of CsI3. It can be prepared by slow volatilization and crystallization of caesium iodide and iodine in aqueous ethanol solution.[3] It can form precipitates with diazobenzene.[4]

It undergoes a phase transition from Pnma to P-3c1 under high pressure, and its structure changes from layered to 3D.[5]

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 tribalides". 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. ^ H. F. Halliwell, S. C. Nyburg (1960). "891. The reaction of the benzenediazonium ion with certain anions in aqueous acid solution". Journal of the Chemical Society (Resumed): 4603–4608. doi:10.1039/jr9600004603. ISSN 0368-1769. Retrieved 2022-09-09.
  5. ^ 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.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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