Acta Cryst. (2011). E67, o1790 [ doi:10.1107/S1600536811024202 ]
Abstract: The dioxaphospholane ring in the title compound, C20H17O3P, adopts an envelope conformation about one of the ring carbons. The benzene rings of the compound do not form face-to-face - interactions, instead weak C-H interactions occur between adjacent molecules. The methine H atoms on the dioxaphospholane ring form weak C-HO hydrogen bonds to the oxide group of an adjacent molecule.
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