2-Methylpyridinium 2-carboxy-6-nitrobenzoate

In the title molecular salt, C6H8N+·C8H4NO6−, the pyridine ring is protonated at the N atom and the anion is deprotonated at one of the hydroxy O atoms. The dihedral angle between the planes of the benzene and pyridine rings is 8.45 (9)°. In the anion, the deprotonated carboxylate group is twisted a...

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Bibliographic Details
Main Authors: P. Sivakumar, S. Sudhahar, S. Israel, G. Chakkaravarthi
Format: Article
Language:English
Published: International Union of Crystallography 2016-07-01
Series:IUCrData
Subjects:
Online Access:http://scripts.iucr.org/cgi-bin/paper?S2414314616011044
Description
Summary:In the title molecular salt, C6H8N+·C8H4NO6−, the pyridine ring is protonated at the N atom and the anion is deprotonated at one of the hydroxy O atoms. The dihedral angle between the planes of the benzene and pyridine rings is 8.45 (9)°. In the anion, the deprotonated carboxylate group is twisted at an angle of 73.78 (11)° from the attached benzene ring, whereas the carboxy group is slightly oriented at an angle of 14.98 (10)°. N—H...O and O—H...O hydrogen bonds link the anions and cations into an infinite chain along the c axis and these chains are further consolidated by C—H...O hydrogen bonds to form a three-dimensional network. The crystals structure is also influenced by weak π–π interactions [centroid–centroid distance = 3.9055 (9) Å].
ISSN:2414-3146