3-(2,4,6-Trimethyl-benzo-yl)-2-naphthoic acid.

S Thenmozhi,J Arulclement,A Subbiahpandi,A K Mohanakrishnan

doi:10.1107/s1600536810040183

Abstract

The asymmetric unit of the title compound, C21H18O3, contains two crystallographically independent molecules. The two molecules are linked into cyclic centrosymmetric dimers R 2 2(8) by O—H⋯O hydrogen bonds. The dihedral angles between the naphthalene ring system and the benzene ring are 87.0 (8) and 84.4 (2)° in the two molecules. The crystal packing is stabilized by O—H⋯O, C—H⋯π and π–π interactions [centroid–centroid distance = 3.664 (11) Å]. In one molecule, the mesityl ring is disordered over two positions [occupancy ratio 0.690 (3):0.690 (3)].

Highlights

The two molecules are linked into cyclic centrosymmetric dimers R22(8) by O—H O hydrogen bonds
The dihedral angles between the naphthalene ring system and the benzene ring are 87.0 (8) and 84.4 (2) in the two molecules
The mesityl ring is disordered over two positions

Summary

Structure Reports

Key indicators: single-crystal X-ray study; T = 293 K; mean (C–C) = 0.002 Å; disorder in main residue; R factor = 0.049; wR factor = 0.167; data-to-parameter ratio = 17.7

Bruker APEXII CCD area detector diffractometer

Related literature

Crystal data

Graphite monochromator ω and φ scans

Special details