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Acta Cryst. (2013). E69, o621-o622
[ doi:10.1107/S1600536813008222 ]

4-(Decyloxy)phenyl 2-oxo-7-trifluoromethyl-2H-chromene-3-carboxylate

B. S. Palakshamurthy, H. C. Devarajegowda, H. T. Srinivasa, S. Sreenivasa and Vijithkumar

Abstract: The title compound, C27H29F3O5, is a liquid crystal (LC) and exhibits enantiotropic SmA phase transitions. In the crystal, the dihedral angle between the 2H-chromene ring system and the benzene ring is 62.97 (2)°. The three F atoms of the -CF3 group are disordered over two sets of sites with occupancy factors 0.71 (4):0.29 (4). In the crystal, pairs of C-H...O hydrogen bonds form inversion dimers and generate R22(10) rings. The structure also features C-H...F and C-H...[pi] interactions along [100] and [010], respectively.


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