Chemistry:Samarium(III) iodide
From HandWiki
| Names | |
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| Other names
Triiodosamarium, Samarium triiodide
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| Identifiers | |
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3D model (JSmol)
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PubChem CID
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| Properties | |
| SmI3 | |
| Molar mass | 531.1 |
| Appearance | orange-yellow crystals |
| Melting point | 850 °C (1,560 °F; 1,120 K) |
| decomposes in water | |
| Hazards | |
| GHS Signal word | Danger |
| Related compounds | |
Related compounds
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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 SmI3.[1][2]
Synthesis
Samarium(III) iodide is prepared by the reaction of metallic samarium and iodine:[3]
- [math]\ce{ 2Sm + 3I2 -> 2SmI3 }[/math]
Properties
Samarium(III) iodide is a yellow powder that is unstable in air and decomposes in water (hydrolysis).[1] When heated with metallic samarium, it forms samarium diiodide:[4]
- [math]\ce{ 2SmI3 + Sm ->[\Delta] 3SmI2 }[/math]
Reduction by hydrogen also affords samarium diiodide:
- [math]\ce{ 2SmI3 + H2 ->[\Delta] 2SmI2 + 2HI }[/math]
Applications
The compound is commercially available and used in organic reactions as a catalyst.[1]
References
- ↑ 1.0 1.1 1.2 Zhang, Yuanmin (6 November 2011). "Samarium Triiodide" (in en). Synlett 2011 (11): 1638–1639. doi:10.1055/s-0030-1260781.
- ↑ "Samarium(III) Iodide" (in en). American Elements. https://www.americanelements.com/samarium-iii-iodide-13813-25-7.
- ↑ Molodkin, A. K.; Karagodina, A. M.; Tupolev, V. S.; Dudareva, A. G.; Prokhina, A. G. (1984). "Iodination of samarium and reaction of samarium triiodide with lithium iodide" (in Russian). Zhurnal Neorganicheskoj Khimii 29 (4): 1069–1072. ISSN 0044-457X. https://inis.iaea.org/search/search.aspx?orig_q=RN:16037389. Retrieved 8 August 2021.
- ↑ Imamoto, Tsuneo; Ono, Mitsumasa (5 March 1987). "The Reaction of Samarium(III) Iodide with Samarium Metal in Tetrahydrofuran, A New Method for the Preparation of Samarium(II) Iodide". Chemistry Letters 16 (3): 501–502. doi:10.1246/cl.1987.501. ISSN 0366-7022.
| HI | He | ||||||||||||||||
| LiI | BeI2 | BI3 | CI4 | NI3 | I2O4, I2O5, I4O9 |
IF, IF3, IF5, IF7 |
Ne | ||||||||||
| NaI | MgI2 | AlI3 | SiI4 | PI3, P2I4 |
S | ICl, ICl3 |
Ar | ||||||||||
| KI | CaI2 | Sc | TiI4 | VI3 | CrI3 | MnI2 | FeI2 | CoI2 | NiI2 | CuI | ZnI2 | Ga2I6 | GeI2, GeI4 |
AsI3 | Se | IBr | Kr |
| RbI | SrI2 | YI3 | ZrI4 | NbI5 | Mo | Tc | Ru | Rh | Pd | AgI | CdI2 | InI3 | SnI4, SnI2 |
SbI3 | TeI4 | I | Xe |
| CsI | BaI2 | HfI4 | TaI5 | W | Re | Os | Ir | Pt | AuI | Hg2I2, HgI2 |
TlI | PbI2 | BiI3 | Po | AtI | Rn | |
| Fr | RaI2 | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |
| ↓ | |||||||||||||||||
| La | Ce | Pr | Nd | Pm | SmI2 | Eu | Gd | TbI3 | Dy | Ho | Er | Tm | Yb | Lu | |||
| Ac | ThI4 | Pa | UI3, UI4 |
Np | Pu | Am | Cm | Bk | Cf | EsI3 | Fm | Md | No | Lr | |||
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