Diphenyl ditelluride
Names | |
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IUPAC name
Diphenylditelluide | |
Other names
Phenylditelluride | |
Identifiers | |
32294-60-3 | |
3D model (Jmol) | Interactive image Interactive image |
ChemSpider | 90943 |
ECHA InfoCard | 100.046.332 |
PubChem | 100657 |
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Properties | |
C12H10Te2 | |
Molar mass | 409.42 g/mol |
Appearance | Orange powder |
Density | 2.23 g/cm3 |
Melting point | 66 to 67 °C (151 to 153 °F; 339 to 340 K) |
Boiling point | decomposes |
Insoluble | |
Solubility in other solvents | Dichloromethane |
Structure | |
90° at Se C2 symmetry | |
0 D | |
Hazards | |
Main hazards | Toxic |
R-phrases | 20/21/22-36/37/38 |
S-phrases | 26-36 |
Related compounds | |
Related compounds |
Ph2S2, Ph2Se2 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
verify (what is ?) | |
Infobox references | |
Diphenylditelluride is the chemical compound with the formula (C6H5Te)2, abbreviated Ph2Te2 This orange-coloured solid is the oxidized derivative of the unstable benzenetellurol, PhTeH. Ph2Te2 is used as a source of the PhTe unit in organic synthesis.
Preparation
Ph2Te2 is prepared by the oxidation of tellurophenolate, which is generated via the Grignard reagent:[1]
- PhMgBr + Te → PhTeMgBr
- 2PhTeMgBr + 0.5 O2 + H2O → Ph2Te2 + 2 MgBr(OH)
The molecule has C2 symmetry.
References
- ↑ Crich, D.; Yao, Q. "Diphenyl Ditelluride" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. doi:10.1002/047084289.
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