Antimony triiodide
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| Names | |||
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| IUPAC name
Antimony triiodide, Antimony(III) iodide
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| Systematic IUPAC name
Triiodostibane
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| Identifiers | |||
7790-44-5  |
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| ChemSpider | 23032  |
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| EC Number | 232-205-8 | ||
| Jmol 3D model | Interactive image Interactive image |
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| PubChem | 24630 | ||
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| Properties | |||
| I3Sb | |||
| Molar mass | 502.47 g·mol−1 | ||
| Appearance | red crystals | ||
| Density | 4.921 g/cm3 | ||
| Melting point | 170.5 °C (338.9 °F; 443.6 K) | ||
| Boiling point | 401.6 °C (754.9 °F; 674.8 K) | ||
| reacts | |||
| Solubility | soluble in benzene, alcohol, acetone, CS2, HCl, KI, SnCl4, C2H7N insoluble in CHCl3, CCl4[1] |
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| Solubility in diiodomethane | 10.15% v/v (12 °C)[2] | ||
| -0.0001472 cm3/ mol | |||
| Structure | |||
| Rhombohedral, hR24, | |||
| R-3, No. 148 | |||
| 1.58 D | |||
| Thermochemistry | |||
| 81.6 J/mol·K (gas)[1] | |||
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Std enthalpy of
formation (ΔfH |
-100.4 kJ/mol[1] | ||
| Vapor pressure | {{{value}}} | ||
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 verify (what is ?) |
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| Infobox references | |||
Antimony triiodide is the chemical compound with the formula SbI3. This ruby-red solid is the only characterized "binary" iodide of antimony, i.e. the sole compound isolated with the formula SbxIy. It contains antimony in its +3 oxidation state. Like many iodides of the heavier main group elements, its structure depends on the phase. Gaseous SbI3 is a molecular, pyramidal species as anticipated by VSEPR theory. In the solid state, however, the Sb center is surrounded by an octahedron of six iodide ligands, three of which are closer and three more distant.[3] For the related compound BiI3, all six Bi—I distances are equal.[4]
Contents
Production
It may be formed by the reaction of antimony with elemental iodine, or the reaction of antimony trioxide with hydroiodic acid.
Alternatively, it may be prepared by the interaction of antimony and iodine in boiling benzene or tetrachloroethane.
Uses
SbI3 has been used as a dopant in the preparation of thermoelectric materials.[5]
References
- ↑ 1.0 1.1 1.2 http://chemister.ru/Database/properties-en.php?dbid=1&id=5180
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
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Wikimedia Commons has media related to Antimony triiodide. |
| 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 | Y | ZrI4 | Nb | Mo | Tc | Ru | Rh | Pd | AgI | CdI2 | InI3 | SnI4, SnI2 |
SbI3 | TeI4 | I | Xe |
| CsI | BaI2 | Hf | Ta | W | Re | Os | Ir | Pt | AuI | Hg2I2, HgI2 |
TlI | PbI2 | BiI3 | Po | AtI | Rn | |
| Fr | Ra | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Uut | Fl | Uup | Lv | Uus | Uuo | |
| ↓ | |||||||||||||||||
| 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 | Es | Fm | Md | No | Lr | |||
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