Abstract: | The crystal structure of the title Schiff base {systematic name: 2,2′‐[methylenedi‐p‐phenylenebis(nitrilomethylidyne)]diphenol}, C27H22N2O2, consists of intramolecularly hydrogen‐bonded molecules interlinked by C—H⋯O hydrogen bonds [C⋯O = 3.426 (2) Å and C—H⋯O = 152.7 (17)°]. The molecule is in the enol form and is located on a twofold axis. The central methane C atom of the diphenylmethane motif is displaced from the aromatic ring planes. This effect is compared with previous results, which display an inverse correlation between the out‐of‐plane displacement and the C—C—C angle around the central methane C atom. In the title compound, the displacement is 0.124 (2) Å and the C—C—C angle is 110.18 (19)°. |