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Diphenyl ditelluride



Diphenyl ditelluride
General
Systematic name Diphenylditelluide
Other names Phenylditelluride
Molecular formula C12H10Te2
SMILES C1(TeTeC2=CC=CC=C2)=CC=CC=C1
Molar mass 409.42 g/mol
Appearance Orange powder
CAS number [32294-60-3]
Properties
Density and phase 2.23 g/cm3
Solubility in water Insoluble
Other solvents Dichloromethane
Melting point 66-67 °C
Boiling point decomp.
Structure
Coordination
geometry
90° at Se
C2 symmetry
Dipole moment 0 D
Hazards
MSDS External MSDS
Main hazards Toxic
NFPA 704
R/S statement R: 20/21/22-36/37/38
S: 26-36
RTECS number
Supplementary data page
Structure and
properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Related compounds Ph2S2,
(Ph2Se2
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and 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 phenyltelluroate, 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.

Safety

Organotellurium compounds are toxic.

References

  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.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Diphenyl_ditelluride". A list of authors is available in Wikipedia.
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