ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, vol.55, pp.248-250, 1999 (SCI-Expanded)
The title molecule, C21H24N2O3, an N2O3-type crown compound, is a crystallographically centrosymmetric multidentate Schiff base ligand containing two imine N and three ether O atoms. It has a short C=N imine bond length [1.254(4) Angstrom] and a narrow C-NC angle [117.9(3)degrees] compared with salicylaldimine and naphthaldimine Schiff bases.