Crystal structure of (E)-2,6-di- tert-butyl-4-{[2-(2,4-di-nitro-phen-yl)hydrazinylidene]meth-yl}phenol

Acta Crystallogr E Crystallogr Commun. 2017 Jan 6;73(Pt 2):96-98. doi: 10.1107/S2056989016020107. eCollection 2017 Feb 1.

Abstract

The essential part (including all the non-hydrogen atoms except two methyl carbons) of the mol-ecule of the title compound, C21H26N4O5, lies on a mirror plane, which bis-ects the t-butyl groups. The conformation of the C=N bond of this Schiff base compound is E, and there is an intra-molecular N-H⋯O hydrogen bond present, forming an S(6) ring motif. In the crystal, mol-ecules are linked via O-H⋯O hydrogen bonds, forming zigzag chains propagating along the a-axis direction. There are no other significant inter-molecular contacts present.

Keywords: 2,4-di­nitro­phenyl­hydrazine; 3,5-di-tert-butyl-4-hy­droxy­benzaldehyde; crystal structure; di-tert-butyl­phenol; di­nitro­benzene; hydrazine; hydrogen bonding.