Chemistry:Thulium(II) iodide
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| Other names
Thulium diiodide
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3D model (JSmol)
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PubChem CID
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| Properties | |
| I2Tm | |
| Molar mass | 422.74316 g·mol−1 |
| Appearance | Dark brown hexagonal crystals[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Thulium diiodide is an inorganic compound with the chemical formula TmI2.
Preparation and properties
Thulium diiodide can be obtained by reacting thulium(III) iodide and alkali metals in a tantalum container at 700~800°C. TmI2 can be obtained by using lithium and sodium as reducing agents, while potassium, rubidium and caesium can generate the perovskite structure MTmI3.[2] TmI2 can also react directly with CsI (340 °C) to generate CsTmI3.[3]
Thulium iodide can also be prepared by reacting thulium and mercury(I) iodide. The reaction process is as follows:[1]
- 2 Tm + 3 HgI
2 → 2 TmI
3 + 3 Hg - Tm + HgI
2 → TmI
2 + Hg - Tm + 2 TmI
3 → 3 TmI
2
References
- ↑ 1.0 1.1 Shihua, Wang; Yaping, Gu; Shengbang, Jiang (1987). "FORMATION MECHANISM OF TmI<SUB>2</SUB> IN Tm-HgI<SUB>2 </SUB>SYSTEM". Acta Physico-Chimica Sinica 3 (03): 334–336. doi:10.3866/pku.whxb19870320. ISSN 1000-6818. http://dx.doi.org/10.3866/pku.whxb19870320.
- ↑ Schilling, Gaby; Kunert, Christine; Schleid, Thomas; Meyer, Gerd (Dec 1992). "Metallothermische Reduktion der Tribromide und ‐iodide von Thulium und Ytterbium mit Alkalimetallen". Zeitschrift für anorganische und allgemeine Chemie 618 (12): 7–12. doi:10.1002/zaac.19926180102. ISSN 0044-2313. http://dx.doi.org/10.1002/zaac.19926180102.
- ↑ 罗时敏,王世华.CsTmI3生成机理及其相转变[J].物理化学学报,1990(01):93-96.
| 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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