4,4′,5,5′-Tetramethyl-2,2′-[1,1′-(propane-1,3-diyldinitrilo)diethylidyne]diphenol

Abstract

The title Schiff base compound, C23H30N2O2, has crystallographic twofold rotation symmetry. An intramolecular O—H...N hydrogen bond forms a six-membered ring, producing an S(6) ring motif. The imino group is coplanar with the benzene ring. The two benzene rings are almost perpendicular to each other, making a dihedral angle of 87.38 (4)°. In the crystal structure, neighbouring molecules are linked along the c axis by weak intermolecular C—H...O hydrogen bonds and are further packed into columns along the b axis, forming sheets which are parallel to the bc plane.