(2-{[2-(diphenyl-phosphino)phen-yl]thio}-phen-yl)diphenyl-phosphine sulfide.

In the title compound, C(36)H(28)P(2)S(2), the dihedral angle between the central benzene rings is 66.95 (13)°. In the crystal, molecules are linked via C(ar)-H⋯π and π-π inter-actions [shortest centroid-centroid distance between benzene rings = 3.