Received 19 March 2013
aDepartment of Physics, Yuvaraja's College (Constituent College), University of Mysore, Mysore, Karnataka 570 005, India,bRaman Research Institute, C. V. Raman Avenue, Sadashivanagar, Bangalore, Karnataka, India,cCenter for Advanced Materials and Department of Chemistry, Tumkur University, Tumkur, Karnataka 572103, India, and dSolid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India
Correspondence e-mail: email@example.com
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-HO hydrogen bonds form inversion dimers and generate R22(10) rings. The structure also features C-HF and C-H interactions along  and , respectively.
For the synthesis and liquid crystal behaviour of the title compound, see: Mahadevan et al. (2013). For the biological activity of coumarins and their derivatives, see: Borges et al. (2005); Kontogiorgis & Hadjipavlou-Litina (2005) and for their industrial applications, see: Hejchman et al. (2011). For the structure of 4-(octyloxy)phenyl 2-oxo-2H-chromene-3-carboxylate, see: Palakshamurthy et al. (2013). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Data collection: APEX2 (Bruker, 2009); cell refinement: APEX2 and SAINT-Plus (Bruker, 2009); data reduction: SAINT-Plus and XPREP (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SJ5309 ).
The authors thank Professor T. N. Guru Row, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, and G. B. Sadananda, Department of Studies and Research in Physics, U·C.S. Tumkur University, Tumkur.
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