Samarium(III) iodide

Samarium(III) iodide

Names
Other names Triiodosamarium, Samarium triiodide
Identifiers
CAS Number	13813-25-7 Y 75179-64-5 (nonahydrate) Y
3D model ( JSmol )	Interactive image
ECHA InfoCard	100.034.048
PubChem CID	83746
CompTox Dashboard (EPA)	DTXSID5065643
InChI InChI=1S/3HI.Sm/h3*1H;/q;;;+3/p-3 Key: XQKBFQXWZCFNFF-UHFFFAOYSA-K
SMILES I[Sm](I)I
Properties
Chemical formula	SmI 3
Molar mass	531.1
Appearance	orange-yellow crystals
Melting point	850 °C (1,560 °F; 1,120 K)
Solubility in water	decomposes in water
Hazards
GHS labelling:
Signal word	Danger
Related compounds
Related compounds	Samarium(II) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Samarium(III) iodide is an inorganic compound, a salt of samarium and hydroiodic acid with the chemical formula SmI
₃.^[1][2]

Synthesis

Samarium(III) iodide is prepared by the reaction of metallic samarium and iodine:^[3]

${\displaystyle {\ce {2Sm + 3I2 -> 2SmI3}}}$

Properties

Samarium(III) iodide is a yellow powder that is unstable in air and decomposes in water (

Reduction by hydrogen also affords samarium diiodide:

${\displaystyle {\ce {2SmI3 + H2 ->[\Delta] 2SmI2 + 2HI}}}$

Applications

The compound is commercially available and used in organic reactions as a catalyst.^[1]

References