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(E)-3,4,5-Trimeth-oxy-N'-[(6-meth-oxy-4-oxo-4H-chromen-3-yl)methyl-idene]benzohydrazide monohydrate.


ABSTRACT: In the title chromone-tethered benzohydrazide derivative, C21H20N2O7·H2O, the atoms of the 4H-chromen-4-one segment are essentially coplanar (r.m.s. deviation = 0.0073?Å) with the largest deviation from the mean plane [0.012?(3)?Å] being found for the benzene C atom. The dihedral angles between the chromone segment and the hydrazide plane and between the chromone segment and the benzene ring of the tri-meth-oxy-benzene unit are 24.67?(9) and 41.28?(8)?Å, respectively. The mol-ecule is connected to the solvent water mol-ecule by O-H?O hydrogen bonds and weak C-H?O inter-actions. Additional N-H?O inter-actions are observed and together they link the mol-ecules into chains forming a two-dimensional network along (011).

SUBMITTER: Ishikawa Y 

PROVIDER: S-EPMC4158489 | BioStudies | 2014-01-01T00:00:00Z

REPOSITORIES: biostudies

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