2-[(E)-1,1-Dioxo-2-(2,4,5-trifluorobenzyl)-3,4-dihydro-2H-1,2-benzothiazin-4-ylidene]acetic acid

In the asymmetric unit of the title compound, C17H12F3NO4S, there are two conformationally similar molecules in which the heterocyclic thiazine ring adopts a half-chair conformation, with the dihedral angle between the two benzene rings being 24.84 (8) and 37.42 (8)°. In the crystal, the molecules f...

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Bibliographic Details
Main Authors: Shaojuan Zhu, Shagufta Parveen, Changjin Zhu
Format: Article
Language:English
Published: International Union of Crystallography 2014-07-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536814013245
Description
Summary:In the asymmetric unit of the title compound, C17H12F3NO4S, there are two conformationally similar molecules in which the heterocyclic thiazine ring adopts a half-chair conformation, with the dihedral angle between the two benzene rings being 24.84 (8) and 37.42 (8)°. In the crystal, the molecules form dimers through cyclic carboxylic acid O—H...O hydrogen-bonding associations [graph set R22(8)] and are extended into chains along [101] through weak C—H...Osulfinyl hydrogen bonds [graph set R22(14)]..
ISSN:1600-5368