Crystal structures of the two isomeric hydrogen-bonded cocrystals 2-chloro-4-nitro-benzoic acid-5-nitro-quinoline (1/1) and 5-chloro-2-nitro-benzoic acid-5-nitro-quinoline (1/1).

ABSTRACT: The structures of two isomeric com-pounds of 5-nitro-quinoline with chloro- and nitro-substituted benzoic acid, namely, 2-chloro-4-nitro-benzoic acid-5-nitro-quinoline (1/1), (I), and 5-chloro-2-nitro-benzoic acid-5-nitro-quinoline (1/1), (II), both C₇H₄ClNO₄·C₉H₆N₂O₂, have been determined at 190 K. In each com-pound, the acid and base mol-ecules are held together by an O-H⋯N hydrogen bond. In the crystal of (I), the hydrogen-bonded acid-base units are linked by a C-H⋯O hydrogen bond, forming a tape structure along [10]. The tapes are stacked into a layer parallel to the ab plane via N-O⋯π inter-actions between the nitro group of the base mol-ecule and the quinoline ring system. The layers are furthe

SUBMITTER: Gotoh K 

PROVIDER: S-EPMC6829746 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature