Diphenyl ditelluride

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 and as a catalyst for redox reactions. The compound is a strong nucleophile, easily displacing halides. It also adds electrophilically across multiple bonds, and traps radicals.

Preparation
Ph2Te2 is prepared by the oxidation of tellurophenolate, which is generated via the Grignard reagent:
 * PhMgBr +  Te  →  PhTeMgBr
 * 2PhTeMgBr + 0.5 O2  +  H2O  →  Ph2Te2  +  2 MgBr(OH)

The molecule has C2 symmetry.