Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 2 (February 2013)

organic compounds

Acta Cryst. (2013). E69, o245    [ doi:10.1107/S160053681300127X ]


M. Taha, N. H. Ismail, A. N. Aziza, S. A. A. Shah and S. Yousuf

Abstract: In the title compound, C29H21O3P, a coumarin-substitued ylid, the P atom is linked to three benzene rings and a planar coumarin moiety via a methyl­enecarbonyl group. The bond lengths in the P=C-C=O fragment clearly indicate a delocalized system involving the olefinic and carbonyl bonds. The mol­ecular structure is stabilized by an intra­molecular C-H...O inter­action that results in an S7 graph-set ring motif. In the crystal, mol­ecules are linked into a three-dimensional framework by C-H...O hydrogen bonds.

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