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The title mol­ecule, C17H16O4, is nearly planar, with a dihedral angle of 6.64 (6)° between the two aromatic rings. The configuration of the keto group with respect to the olefinic double bond is s-cis. O-H...O and C-H...[pi] hydrogen bonds link the mol­ecules to form layers parallel to the ab plane. The crystal structure is further stabilized by a number of C-H...O interactions, which form rings of R21(5), R21(6) and R12(5) graph set motifs.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536803015186/wn6169sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536803015186/wn6169Isup2.hkl
Contains datablock I

CCDC reference: 221688

Key indicators

  • Single-crystal X-ray study
  • T = 293 K
  • Mean [sigma](C-C) = 0.002 Å
  • R factor = 0.040
  • wR factor = 0.119
  • Data-to-parameter ratio = 13.8

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry








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