(E)-4-Methyl-N'-[(4-oxo-4H-chromen-3-yl)methyl-idene]benzohydrazide.

ABSTRACT: In the title chromone-tethered benzohydrazide derivative, C18H14N2O3, the 4H-chromen-4-one and the -CH=N-NH-CO- units are each essentially planar, with the largest deviations from thei planes being 0.052?(2) and 0.003?(2)?Å, respectively. The dihedral angles between the 4H-chromen-4-one and the -CH=N-NH-CO- units, the 4H-chromen-4-one unit and the benzene ring of the 4-tolyl group, and the benzene ring of the 4-tolyl group and the -CH=N-NH-CO- unit are 8.09?(7), 9.94?(5) and 17.97?(8)°, respectively. In the crystal, the mol-ecules form two types of centrosymmetric dimers: one by N-H?O hydrogen bonds and the other by ?-? stacking inter-actions between the 4H-chromen-4-one unit and the 4-tolyl group [centroid-centroid distance = 3.641?(5)?Å]. These dimers form one-dimensional assemblies extending along the a-axis direction. Additional ?-? stacking inter-actions between two 4H-chromen-4-one units [centroid-centroid distance = 3.591?(5)?Å] and two 4-tolyl groups [centroid-centroid distance = 3.792?(5)?Å] organize the mol-ecules into a three-dimensional network.

SUBMITTER: Ishikawa Y 

PROVIDER: S-EPMC4011241 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature