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(E)-4-Meth-oxy-N'-[(6-methyl-4-oxo-4H-chromen-3-yl)methyl-idene]benzo-hydrazide monohydrate.

ABSTRACT: In the title hydrate, C19H16N2O4·H2O, the 4H-chromen-4-one segment is slightly twisted, with a dihedral angle between the two six-membered rings of 3.30?(5)°. The dihedral angles between the plane of the pyran-one ring and the hydrazide plane and between the planes of the pyran-one ring and the benzene ring of the p-meth-oxy-benzene unit are 26.69?(4) and 2.23?(3)°, respectively. The mol-ecule is connected to the solvent water mol-ecule by an N-H?O hydrogen bond. In the crystal, there are ?-? stacking inter-actions between centrosymmetrically related pyran-one rings [centroid-centroid distance = 3.5394?(9)?Å], as well as bridges formed by the water mol-ecules via O-H?O hydrogen bonds.

SUBMITTER: Ishikawa Y 

PROVIDER: S-EPMC4120634 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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(E)-4-Meth-oxy-N'-[(6-methyl-4-oxo-4H-chromen-3-yl)methyl-idene]benzo-hydrazide monohydrate.

Ishikawa Yoshinobu Y   Watanabe Kohzoh K  

Acta crystallographica. Section E, Structure reports online 20140618 Pt 7

In the title hydrate, C19H16N2O4·H2O, the 4H-chromen-4-one segment is slightly twisted, with a dihedral angle between the two six-membered rings of 3.30 (5)°. The dihedral angles between the plane of the pyran-one ring and the hydrazide plane and between the planes of the pyran-one ring and the benzene ring of the p-meth-oxy-benzene unit are 26.69 (4) and 2.23 (3)°, respectively. The mol-ecule is connected to the solvent water mol-ecule by an N-H⋯O hydrogen bond. In the crystal, there are π-π st  ...[more]

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