Research Article: (E)-2-Chloro-N′-(4-hy­droxy­benzyl­idene)­benzohydrazide

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Xiao-Yan Li.


The title hydrazone mol­ecule, C14H11ClN2O2, has a trans conformation with respect to the methyl­idene unit. The dihedral angle between the two benzene rings is 37.6 (3)°. In the crystal, the presence of O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonds leads to the formation of a three-dimensional network. The title compound crystallized in the chiral ortho­rhom­bic space group P212121 and was refined as an inversion twin [Flack parameter = −0.20 (18)].

Partial Text

For the syntheses and crystal structures of hydrazone compounds, see: Hashemian et al. (2011 ▶); Lei (2011 ▶); Shalash et al. (2010 ▶). For the crystal structures of similar compounds, reported recently by the author, see: Li (2011a ▶,b ▶).