1-Di­phenyl­phosphanyl-2-(di­phenyl­phosphor­yl)hydrazine

The title compound, C24H22N2OP2, is an asymmetrically substituted hydrazine derivative bearing a phosphoryl and a phosphanyl substituent. The PNNP backbone has a torsion angle of −131.01 (8)°. In the crystal, mol­ecules form centrosymmetric dimers by inter­molecular N—H⋯O hydrogen bonds, which are further linked into a three-dimensional network by weak C—H⋯O and C—H⋯π inter­actions.