Ethyl 2-(3,5-difluorophenyl)quinoline-4-carboxylate: a second triclinic polymorph

The title compound, C18H13F2NO2, is a polymorph of the structure reported by Sunitha et al. [Acta Cryst. (2015), E71, o341–o342]. Both compounds crystallize in the triclinic space group P\overline{1}. The principal difference between the two polymorphs lies in the orientation of the carboxylate subs...

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Bibliographic Details
Main Authors: S. Shashidhar Bharadwaj, Karthik Kumara, Boja Poojary, H. S. Yathirajan, K. Byrappa, N. K. Lokanath, S. Madan Kumar
Format: Article
Language:English
Published: International Union of Crystallography 2016-05-01
Series:IUCrData
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Online Access:http://scripts.iucr.org/cgi-bin/paper?S2414314616007392
Description
Summary:The title compound, C18H13F2NO2, is a polymorph of the structure reported by Sunitha et al. [Acta Cryst. (2015), E71, o341–o342]. Both compounds crystallize in the triclinic space group P\overline{1}. The principal difference between the two polymorphs lies in the orientation of the carboxylate substituents with respect to the planes of the quinoline ring systems. In the crystal, the packing features C—H...O hydrogen bonds together with short C—F...π and π–π interactions [inter-centroid distances of 3.8199 (11), 3.6825 (12) and 3.8722 (13) Å].
ISSN:2414-3146