X-ray diffraction analysis of (Ph2PO)2

The title compound (Ph2PO)2 is analyzed by single crystal X-ray diffraction analysis. The crystals are monoclinic, space group P2(1)/n with a = 9.5112(19) Å, b = 11.161(2) Å, c = 9.5487(19) Å, α = 90°, β = 91.65(3)°, γ = 90°, V = 1013.2(3) ų, Z = 2, F(₀₀₀) = 420, Dc = 1.319 g cm^–3, μ = 0.232 mm^?1, the final R = 0.0818, and wR = 0.2259. A total of 7954 reflections were collected, of which 1758 were independent (R_int = 0.0542). In the crystal packing diagram, intermolecular C—H···O hydrogen bonds stabilize the solid state of the title compound.