• Source: Tellurium dichloride

Tellurium dichloride is a chloride of tellurium with the chemical formula TeCl2.




Preparation


Tellurium dichloride can be produced by reacting tellurium with difluorodichloromethane.
It can also be produced by the comproportionation of tellurium and tellurium tetrachloride.




Properties


Tellurium dichloride is a black solid that reacts with water. It will melt into a black liquid and vapourize into a purple gas. The gas consists of monomeric TeCl2 molecules with Te–Cl bond lengths of 2.329 Å and a Cl–Te–Cl bond angle of 97.0°.
Tellurium dichloride (TeCl2) is unstable with respect to disproportionation. Several complexes of it are known and well characterized. They are prepared by treating tellurium dioxide with hydrochloric acid in the presence of thioureas. The thiourea serves both as a ligand and as a reductant, converting Te(IV) to Te(II).




References

Kata Kunci Pencarian:

• Kalium
• Seng
• Logam alkali
• Selenium
• Litium
• Klorin
• Bilangan oksidasi
• Xenon
• Paladium
• Skandium
• Tellurium dichloride
• Dichloride
• Selenium dichloride
• Tellurium chloride
• Ditellurium bromide
• Tritellurium dichloride
• Tellurium tetrachloride
• Tellurium monoiodide
• Chalcogen
• List of CAS numbers by chemical compound