On November 1, 2019, Gotoh, Kazuma; Ishida, Hiroyuki published an article.COA of Formula: C7H4ClNO4 The title of the article was Crystal structures of the two isomeric hydrogen-bonded cocrystals 2-chloro-4-nitrobenzoic acid-5-nitroquinoline (1/1) and 5-chloro-2-nitrobenzoic acid-5-nitroquinoline (1/1). And the article contained the following:
The structures of two isomeric compounds of 5-nitroquinoline with chloro- and nitro-substituted benzoic acid, namely, 2-chloro-4-nitrobenzoic acid-5-nitroquinoline (1/1), (I), and 5-chloro-2-nitrobenzoic acid-5-nitroquinoline (1/1), (II), both C7H4ClNO4·C9H6N2O2, have been determined at 190 K. In each compound, the acid and base mols. 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 [1 [inline formula omitted] 0]. The tapes are stacked into a layer parallel to the ab plane via N-O···π interactions between the nitro group of the base mol. and the quinoline ring system. The layers are further linked by other C-H···O hydrogen bonds, forming a three-dimensional network. In the crystal of (II), the hydrogen-bonded acid-base units are linked into a wide ribbon structure running along [1 [inline formula omitted] 0] via C-H···O hydrogen bonds. The ribbons are further linked via another C-H···O hydrogen bond, forming a layer parallel to (110). Weak π-π interactions [centroid-centroid distances of 3.7080 (10) and 3.7543 (9) Å] are observed between the quinoline ring systems of adjacent layers. Hirshfeld surfaces for the 5-nitroquinoline mols. of the two compounds mapped over shape index and dnorm were generated to visualize the weak intermol. interactions. The experimental process involved the reaction of 2-Chloro-4-nitrobenzoic acid(cas: 99-60-5).COA of Formula: C7H4ClNO4
The Article related to chloro nitrobenzoic acid nitroquinoline isomeric hydrogen bond crystal structure, 2-chloro-4-nitrobenzoic acid, 5-chloro-2-nitrobenzoic acid, 5-nitroquinoline, hirshfeld surface, crystal structure, hydrogen bond and other aspects.COA of Formula: C7H4ClNO4
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics