Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
(E)-N′-(3-Bromo-5-chloro-2-hydroxybenzylidene)nicotinohydrazide
oleh: G. Chakkaravarthi, A. Ramu, M. Prabhu, K. Parthipan, G. Rajagopal
Format: | Article |
---|---|
Diterbitkan: | International Union of Crystallography 2011-10-01 |
Deskripsi
There are two independent molecules in the asymmetric unit of the title compound, C13H9BrClN3O2, in which the dihedral angles between the benzene and pyridine rings are 8.23 (9)° and 52.84 (12)°. Both the molecules exist in an E configuration with respect to the C=N double bond. The two molecules in the asymmetric unit are linked via weak C—H...O hydrogen bonds. In both the molecules, an intramolecular O—H...N hydrogen bond generate an S(6) graph-set motif. In the crystal, intermolecular N—H...O and C—H...O hydrogen bonds generate bifurcated R12(7) ring motifs. The crystal packing is further stabilized by weak intermolecular N—H...O, N—H...N, C—H...O and π–π [centroid–centroid distance 3.615 (2) Å] interactions.