Description

• Title:
  2-Methoxy-3-[(3,4,5-trimethoxyanilino)- methylidene]-3,4-dihydro-2H-1-benzopyran-4-one
• Creator:
  Małecka, Magdalena;
  Ciołkowski, Michał;
  Budzisz, Elżbieta
• Contributor:
  Department of Crystallography and Crystal Chemistry, University of Łódź, Pomorska 149/153, PL-90236 Łódź, Poland;
  Department of Cosmetic Raw Materials Chemistry, Faculty of Pharmacy, Medical University of Łódź, Muszyńskiego 1, PL-90151 Łódź, Poland;
  malecka@uni.lodz.pl
• Description:
  The title mol­ecule, C20H21NO6, adopts a keto–amine tautomeric form. An intra­molecular N—H⋯O hydrogen bond, classified as a resonanse-assisted hydrogen bond, influences the mol­ecular conformation; the two benzene rings form a dihedral angle of 24.6 (1)°. In the crystal structure, weak inter­molecular C—H⋯O hydrogen bonds link mol­ecules into chains propagating along [001].;
  Financial support from the University of Łódź and the Medical University of Łódź (grant No. 505/710 to MM and No. 502–13-701 to MC) is gratefully acknowledged. The authors thank Dr Oliver Presly from Oxford Diffraction for collecting the data.
• Object availability:
  free access
• Rights:
  Uznanie autorstwa 4.0 Międzynarodowe;
  http://creativecommons.org/licenses/by/4.0
• Date:
  2022.02.01;
  2010
• Type:
  Article
• Language:
  English
• Format:
  application/pdf
• Publisher:
  International Union of Crystallography
• Relation:
  Acta Crystallographica Section E: Crystallographic Communications;66;
  1
• Subject:
  single-crystal X-ray study;
  T = 100 K;
  mean (C–C) = 0.002 A;
  R factor = 0.037;
  wR factor = 0.101;
  data-to-parameter ratio = 11.5
• Identifier:
  1600-5368;
  http://hdl.handle.net/11089/40543 ;
  10.1107/S1600536809054889
• Data provider:
  Repozytorium Uniwersytetu Łódzkiego
• Can I use it?:
  check license
• Type:
  image