French
DeutschTritellurium dichloride
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| Identifiers | |
|---|---|
3D model (JSmol) | |
| |
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| Properties | |
| Te3Cl2 | |
| Molar mass | 453.71 g/mol |
| Appearance | Gray solid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Tritellurium dichloride is the inorganic compound with the formula Te3Cl2. It is one of the more stable lower chlorides of tellurium.
Preparation and properties
[edit]Te3Cl2 is a gray solid. Its structure consists of a long chain of Te atoms, with every third Te center carrying two chloride ligands for the repeat unit -Te-Te-TeCl2-.[2] It is a semiconductor with a band gap of 1.52 eV, which is larger than that for elemental Te (0.34 eV).[3] It is prepared by heating Te with the appropriate stoichiometry of chlorine.[4]
References
[edit]- ^ Foss, O.; Maartmann-Moe, K. (1986). "Crystal and Molecular Structures of trans Square–Planar Complexes of Tellurium Dichloride, Dibromide and Diiodide with Tetramethylthiourea, TeL2X2. Bond Lengths in Centrosymmetric Tellurium(II) Complexes". Acta Chemica Scandinavica A. 40: 675. doi:10.3891/acta.chem.scand.40a-0675.
- ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
- ^ Xu, Zhengtao (2006). "Recent Developments in Binary Halogen–Chalcogen Compounds, Polyanions and Polycations". In Devillanova, Francesco (ed.). Handbook of Chalcogen Chemistry: New Perspectives in Sulfur, Selenium and Tellurium. Royal Society of Chemistry. pp. 381–416. doi:10.1039/9781847557575-00455.
- ^ Kniep, R.; Mootz, D.; Rabenau, A. (1976). "Zur Kenntnis der Subhalogenide des Tellurs". Zeitschrift für anorganische und allgemeine Chemie. 422: 17–38. doi:10.1002/zaac.19764220103.