Crystal structure of (E)-N'-(5-bromo-2-hy-droxy-benzyl-idene)nicotinohydrazide monohydrate.
In the title compound, C13H10BrN3O2·H2O, the conformation about the azomethine double bond is E. The mol-ecule exists in the amido form with a C=O bond length of 1.229 (2) Å. There is an intra-molecular O-H⋯N hydrogen bond forming an S(6) ring motif. The whole mol-ecule is almost planar, with an r.m.s. deviation of 0.021 Å for all non-H atoms, and the dihedral angle between the planes of the pyridine and benzene rings is 0.74 (12)°. In the crystal, the water mol-ecule of crystallization links the organic mol-ecules via Ow-H⋯O, Ow-H⋯N and N-H⋯Ow hydrogen bonds and short C-H⋯Ow contacts, forming sheets lying parallel to (100). Within the sheets there is a weak π-π inter-action involving the pyridine and benzene rings [centroid-to-centroid distance = 3.8473 (15) Å]. The sheets are linked via C-H⋯Br inter-actions, forming a three-dimensional network.
Department of Chemistry, Amrita Vishwa Vidyapeetham, Clappana PO, Kollam 690 525, India.
S
S
Sravya
Department of Chemistry, Amrita Vishwa Vidyapeetham, Clappana PO, Kollam 690 525, India.
S
S
Sruthy
Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India.
N
N
Aiswarya
Department of Chemistry, Faculty of Science, Eastern University, Chenkalady, Sri Lanka.
M
M
Sithambaresan
Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India.
M R Prathapachandra
MR
Kurup
aroylhydrazone; carbohydrazide; crystal structure; hydrogen bonding; nicotinohydrazide