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| Identifiers | |
|---|---|
3D model (JSmol) | |
| ChemSpider | |
| UNII | |
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| Properties | |
| Cl2Te | |
| Molar mass | 198.50 g·mol−1 |
| Appearance | black solid[1] |
| Density | 6.9 g·cm−3[1] |
| Melting point | 208 °C[1] |
| Boiling point | 328 °C[1] |
| reacts[1] | |
| Solubility | reacts withdiethyl ether, insoluble intetrachloromethane[1] |
| Related compounds | |
Otheranions | Ditellurium bromide,Te2Br |
Othercations | Dichlorine monoxide,OCl2 Sulfur dichloride,SCl2 Selenium dichloride,SeCl2 Polonium dichloride,PoCl2 |
Related compounds | Tritellurium dichloride,Te3Cl2 Tellurium tetrachloride,TeCl4 |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Tellurium dichloride is achloride oftellurium with the chemical formula TeCl2.
Tellurium dichloride can be produced by reacting tellurium withdifluorodichloromethane.[2][3]
It can also be produced by thecomproportionation of tellurium andtellurium tetrachloride.[4]
Tellurium dichloride is a black solid that reacts with water. It melts into a black liquid and vapourizes into a purple gas.[1][5] The gas consists of monomeric TeCl2 molecules with Te–Clbond lengths of 2.329 Å and a Cl–Te–Clbond angle of 97.0°.[5]
Tellurium dichloride (TeCl2) is unstable with respect todisproportionation.[5] Several complexes of it are known and well characterized. They are prepared by treating tellurium dioxide withhydrochloric acid in the presence ofthioureas. The thiourea serves both as a ligand and as a reductant, converting Te(IV) to Te(II).
