Title of article :
Crystal structures of isomeric 4-bromo-N-[(2-nitrophenyl)sulfonyl]benzamide and 4-bromo-N-[(4-nitrophenyl)sulfonyl]benzamide
Author/Authors :
Naveen, S. Institution of Excellence - University of Mysore, India , Sudha, A. G. Department of Chemistry - University College of Science, India , Lokanath, N. K. Department of Studies in Physics - University of Mysore, India , Suchetan, P. A. Department of Chemistry - University College of Science, India , Abdoh, M. Department of Physics - Science College - An-Najah National University, Palestinian Territories
Abstract :
The syntheses and crystal structures of the isomeric 4-bromo-N-[(2-nitrophenyl)sulfonyl]benzamide, (I), and 4-bromo-N-[(4-nitrophenyl)sulfonyl]benzamide, (II), are described (molecular formula = C13H9BrN2O5S in each case). The asymmetric unit of (I) contains two independent molecules [(IA) and (IB)], while that of (II) contains one molecule. The benzoic acid aromatic ring of molecule (IA) is disordered due to rotation about the Car—C(=O) bond over two orientations in a 0.525 (9):0.475 (9) ratio. The dihedral angle between the benzene rings is 85.9 (3)° in (IA) and 65.22 (19)° in (IB), while in (II), the corresponding value is 56.7 (7)°. In the crystals of (I) and (II), N—H⋯O, C—H⋯O and C—H⋯π interactions generate three-dimensional networks.
Keywords :
crystal structure , C—H⋯π interactions , C—H⋯O interactions , N—H⋯O hydrogen bonds , sulfonamides
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
