Einsteinium(III) iodide

Einsteinium(III) iodide
	; __ Es3+ __ I−
Names
	IUPAC names Einsteinium triiodide; Einsteinium(III) iodide
Identifiers
CAS Number	99644-28-7;
3D model (JSmol)	Interactive image;
ChemSpider	65322231;
	InChI InChI=1S/Es.3HI/h;3*1H/q+3;;;/p-3 Key: HAHWYACNRLFPJX-UHFFFAOYSA-K;
	SMILES I[Es](I)I;
Properties
Chemical formula	EsI3
Molar mass	632.796 g/mol
Appearance	amber-coloured solid, glows red in the dark
Structure
Crystal structure	Hexagonal
Space group	R3
	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. 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.

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