4-4-(Heptyloxy)benzoyloxyphenyl 2-oxo-7-trifluoromethyl-2H-chromene-3- carboxylate

Devarajegowda, H. C. and Palakshamurthy, B. S. and Harishkumar, H. N. and Suchetan, P. A. and Sreenivasa, S. (2013) 4-4-(Heptyloxy)benzoyloxyphenyl 2-oxo-7-trifluoromethyl-2H-chromene-3- carboxylate. Acta Crystallographica Section E: Structure Reports Online, 69 (8). o1355-o1356. ISSN 1600-5368

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Official URL: http://doi.org/10.1107/S1600536813020679

Abstract

The title compound, C31H27F3O7, is a liquid crystal and exhibits enanti¬otropic SmA and nematic phase transitions. In the crystal, the the 2H-chromene ring system makes dihedral angles of 54.46 (17) and 7.79 (16)°, respectively, with the central benzene ring and 4-(hept¬yloxy)benzene ring. The three F atoms of the -CF3 group are disordered over two sets of sites, with an occupancy ratio of 0.62 (3):0.38 (3). The crystal structre features two pairs of C-H O hydrogen bonds, which form inversion dimers and generate R22(10) and R22(30) ring patterns. C-H O inter¬actions along [100] and C-H inter¬actions futher consolidate the packing, leading to a three-dimensional network.

Item Type: Article
Subjects: D Physical Science > Physics
Divisions: Yuvaraj college > Physics
Depositing User: Arshiya Kousar
Date Deposited: 19 Sep 2019 10:34
Last Modified: 19 Sep 2019 10:34
URI: http://eprints.uni-mysore.ac.in/id/eprint/7982

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