TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Abdel El‐wahab, Hend A. A. A1 - Hamdy, Ahmed K. A1 - Schulzke, Carola A1 - Aboul‐Fadl, Tarek A1 - Qayed, Wesam S. T1 - Crystal structure and quantum chemical calculations of (E)1‐benzyl‐3‐((4‐methoxyphenyl)imino)‐5‐methylindolin‐2‐one JF - Journal of Heterocyclic Chemistry N2 - Abstract The known Schiff base compound, (E)1‐benzyl‐3‐((4‐methoxyphenyl)imino)‐5‐methylindolin‐2‐one, was prepared as before by reacting 1‐benzyl‐5‐methylindoline‐2,3‐dione with 4‐methoxyaniline. The product was unambiguously characterized using elemental analysis, 1H and 13C‐NMR spectroscopy, and its new single‐crystal X‐ray structural analysis. Molecular orbital calculations were conducted in order to investigate the structures and relative stabilities of the (E) and (Z) isomers of 1‐benzyl‐3‐([4 methoxyphenyl]‐imino)‐5‐methylindolin‐2‐one. Specific attention was paid to the (E) isomer. The available crystallographic experimental data for the latter ensured also validation of the model structures computationally derived at the theoretical B3LYP/6‐31G(d,p) level. Y1 - 2021 UN - https://nbn-resolving.org/urn:nbn:de:gbv:9-opus-56112 U6 - https://doi.org/10.1002/jhet.4284 DO - https://doi.org/10.1002/jhet.4284 VL - 58 IS - 8 SP - 1601 EP - 1609 PB - Wiley CY - Hoboken, NJ ER -