Einsteinium(III) iodide

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Einsteinium(III) iodide
Kristallstruktur Bismut(III)-iodid.png
__ Es3+     __ I
Einsteinium triiodide by transmitted light.jpg
IUPAC names
Einsteinium triiodide
Einsteinium(III) iodide
3D model (JSmol)
Molar mass 632.796 g/mol
Appearance amber-coloured solid, glows red in the dark[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Einsteinium triiodide is an iodide of the synthetic actinide einsteinium which has the molecular formula EsI3. This crystalline salt is an amber-coloured solid.[1] It glows red in the dark due to einsteinium's intense radioactivity.

It crystallises in the hexagonal crystal system in the space group R3 with the lattice parameters a = 753 pm and c = 2084.5 pm with six formula units per unit cell. Its crystal structure is isotypic with that of bismuth(III) iodide.[2][3]


  1. ^ a b Arnold F. Holleman, Nils Wiberg: Lehrbuch der Anorganischen Chemie, 102nd Edition, de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1, p. 1969.
  2. ^ R. G. Haire, ORNL Report 5485, 1978.
  3. ^ J. R. Peterson: "Chemical Properties of Einsteinium: Part II", in: G. T. Seaborg (ed.): Proceedings of the 'Symposium Commemorating the 25th Anniversary of Elements 99 and 100', 23. January 1978; Report LBL-7701, April 1979, pp. 55–64.

Further reading[edit]