8-Acetyl-4-methyl-2-oxo-2H-chromen-7-yl acetate

oleh: Shu-Ping Yang, Li-Jun Han, Xin-Ran He, Li-Juan Chen

Format: Article
Diterbitkan: International Union of Crystallography 2011-12-01

Deskripsi

In the title compound, C14H12O5, the benzopyran-2-one ring system is approximately planar [maximum deviation = 0.018 (1) Å]; the mean plane is oriented at dihedral angles of 52.26 (11) and 72.92 (7)°, respectively, to the acetyl and acetoxy groups. In the crystal, π–π stacking is observed between parallel benzene rings of adjacent molecules, the centroid–centroid distance being 3.6774 (17) Å. Intermolecular weak C—H...O hydrogen bonding, and C=O...C=O [O...C = 3.058 (3) Å] and C=O...π [O...centroid = 3.328 (2) Å] interactions occur in the crystal structure.