Ontology highlight
ABSTRACT:
SUBMITTER: Ishikawa Y
PROVIDER: S-EPMC4120634 | biostudies-literature | 2014 Jul
REPOSITORIES: biostudies-literature
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]