5,5′-Dimethoxy-2,2′-[(nonane-1,9-diyldioxy)bis(nitrilomethylidyne)]diphenol

Abstract

The molecule of the title compound, C25H34N2O6, adopts a fully extended configuration. The oxime (—CH=N—O—) group is coplanar with the aromatic ring and the two benzene rings are almost parallel, making a dihedral angle of 0.16 (3)°. In the crystal structure, strong intramolecular O—H...N hydrogen bonds generate six-membered S(6) ring motifs. Intermolecular C—H...O hydrogen bonds link each molecule to five others, forming an infinite three-dimensional supramolecular structure. The crystal is further stabilized by π–π stacking interactions between neighbouring benzene rings [centroid–centroid distance = 3.744 (2) Å].