%0 Journal Article
%T N-(4-Methyl-2-nitrophenyl)succinamic acid
%A U. Chaithanya
%A Sabine Foro
%A B. Thimme Gowda
%J Acta Crystallographica Section E
%D 2012
%I International Union of Crystallography
%R 10.1107/s1600536812007258
%X In the title compound, C11H12N2O5, the conformation of the N¡ªH bond in the amide segment is syn to the ortho-nitro group in the benzene ring. The amide C=O and the carboxyl C=O of the acid segment are syn to each other and both are anti to the H atoms on the adjacent ¨CCH2 groups. Furthermore, the C=O and O¡ªH bonds of the acid group are in syn positions with respect to each other. The dihedral angle between the benzene ring and the amide group is 36.1 (1)¡ã. The amide H atom shows bifurcated intramolecular hydrogen bonding with an O atom of the ortho-nitro group and an intermolecular hydrogen bond with the carbonyl O atom of another molecule. In the crystal, the N¡ªH...O(C) hydrogen bonds generate a chain running along the [100] direction. Inversion dimers are formed via a pair of O¡ªH...O(C) interactions, that form an eight-membered hydrogen-bonded ring involving the carboxyl group.
%U http://scripts.iucr.org/cgi-bin/paper?S1600536812007258