1,4-Phenylenebis(diphenylphosphine oxide)

The structure of the title compound, 1,4-C₆H₄[PO(C₆H₅)₂]₂ (C₃₀H₂₄O₂P₂), is the first to be reported of a phenylenebis(phosphine oxide). The molecule lies about an inversion centre and the unique P atom has a distorted tetrahedral environment; P=O 1.489 (3), average P—C 1.812 (4) Å, average C—P—C 106.9 (8) and average O—P—C 112.0 (2)°. The structure is stabilized by C—H...O intermolecular hydrogen bonds.

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