Abstract
The title compound, C12H9O4P, was prepared by the oxidation of tri-2-furylphosphine. The P=O bond length is 1.478 (2) Å and the C—P bond lengths range from 1.774 (2) to 1.785 (2) Å. The tri-2-furyl-phosphine oxide molecule displays a very distorted confirmation (not propeller-like) due to the large variation in O—P—C—C torsion angles [5.6 (3), 8.5 (3) and 118.0 (3)°]. The crystal structure involves intermolecular C—H⋯O hydrogen bonds.
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