3-[2-(Triphenylphosphanylidene)acetyl]-2H-chromen-2-one

3-[2-(Triphenylphosphanylidene)acetyl]-2H-chromen-2-one

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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 molecula...

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Bibliographic Details
Main Authors: Aziza, A.N (Author), Ismail, N.H (Author), Shah, S.A.A (Author), Taha, M. (Author), Yousuf, S. (Author)
Format: Article
Language:English
Subjects:
data-to-parameter ratio = 13.7
mean σ(C-C) = 0.002 Å
R factor = 0.035
single-crystal X-ray study
T = 100 K
wR factor = 0.093
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Summary: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.
ISBN:16005368 (ISSN)
DOI:10.1107/S160053681300127X

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