Chemistry:Cerium(III) iodide
From HandWiki
| Names | |
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| IUPAC name
Triiodocerium
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| Other names
Cerous triiodide, Cerium triiodide
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| Identifiers | |
3D model (JSmol)
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| EC Number |
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PubChem CID
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| UNII | |
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| Properties | |
| CeI3 | |
| Molar mass | 520.829 g·mol−1 |
| Appearance | yellow solid[1][2] |
| Melting point | 766 °C,[1] 752 °C[2] |
| soluble[2] | |
| Solubility in acetone | soluble[2] |
| Structure[1][3][4] | |
| PuBr3 | |
| 8-coordinate bicapped trigonal prismatic | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Cerium(III) iodide (CeI3) is the compound formed by cerium(III) cations and iodide anions.
Preparation
Cerium metal reacts with iodine when heated to form cerium(III) iodide:[2]
- 2 Ce + 3 I
2 → 2 CeI
3
It is also formed when cerium reacts with mercury(II) iodide at high temperatures:[2]
- 2 Ce + 3 HgI
2 → 2 CeI
3 + 3 Hg
Structure
Cerium(III) iodide adopts the plutonium(III) bromide crystal structure.[3][4] It contains 8-coordinate bicapped trigonal prismatic Ce3+ ions.[1]
Uses
Cerium(III) iodide is used as a pharmaceutical intermediate[5] and as a starting material for organocerium compounds.[2]
References
- ↑ 1.0 1.1 1.2 1.3 Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1240-1241. ISBN 978-0-08-037941-8.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Imamoto, Tsuneo (15 April 2001). "Cerium(III) Iodide". Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons, Ltd.. doi:10.1002/047084289X.rc043. ISBN 9780471936237. https://onlinelibrary.wiley.com/doi/abs/10.1002/047084289X.rc043.
- ↑ 3.0 3.1 Wells, A. F. (1984). Structural Inorganic Chemistry (5th ed.). Oxford University Press. p. 421. ISBN 978-0-19-965763-6.
- ↑ 4.0 4.1 Asprey, L. B.; Keenan, T. K.; Kruse, F. H. (1964). "Preparation and Crystal Data for Lanthanide and Actinide Triiodides". Inorg. Chem. 3 (8): 1137–1141. doi:10.1021/ic50018a015. https://digital.library.unt.edu/ark:/67531/metadc867868/.
- ↑ "7790-87-6 - Cerium(III) iodide, ultra dry, 99.9% (REO) - Cerium triiodide - 13641 - Alfa Aesar". https://www.alfa.com/en/catalog/013641/.
| 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 | |||
 |  |
