Diphenyl ditelluride

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Diphenyl ditelluride
Chemical structure of diphenyl ditelluride
Space-filling model of the diphenyl ditelluride molecule
Names
IUPAC name
Diphenylditelluide
Other names
Phenylditelluride
Identifiers
32294-60-3 YesY
ChemSpider 90943 YesY
Jmol-3D images Image
Image
PubChem 100657
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).
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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[edit]

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[edit]

  1. ^ 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.