Diphenylditelluride is the chemical compound with the formula (C<sub>6</sub>H<sub>5</sub>Te)<sub>2</sub>, abbreviated Ph<sub>2</sub>Te<sub>2</sub>. This orange-coloured solid is the oxidized derivative of the unstable benzenetellurol, PhTeH. Ph<sub>2</sub>Te<sub>2</sub> 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.
Ph<sub>2</sub>Te<sub>2</sub> is prepared by the oxidation of tellurophenolate, which is generated via the Grignard reagent:
The molecule has C<sub>2</sub> symmetry.