Ethyl 5-{[(E)-2-(isonicotinoyl)hydrazinyl-idene]methyl}-3,4-dimethyl-1H-pyrrole-2-carboxyl-ate dihydrate.

ABSTRACT: In the title compound, C(16)H(18)N(4)O(3)·2H(2)O, the dihedral angle between the pyrrole and pyridine rings in the hydrazone mol-ecule is 7.12?(3)°. In the crystal structure, inter-molecular N-H?O, O-H?N and O-H?O hydrogen bonds link the hydrazone and water mol-ecules into double layers parallel to (101). The crystal packing exhibits weak ?-? inter-actions between the pyrrole and pyridine rings of neighbouring hydrazone mol-ecules [centroid-centroid distance = 3.777?(3)?Å]. The crystal studied was a non-merohedral twin, the refined ratio of twin domains being 0.73?(3):0.27?(3).

SUBMITTER: Zhang ZP 

PROVIDER: S-EPMC3120595 | biostudies-literature | 2011 Jun

REPOSITORIES: biostudies-literature