Acta Crystallographica Section E (Jul 2008)

Semisynthetic roxburghin tetramethyl ether

  • Alex Saez,
  • Carmen Ramirez de Arellano,
  • Noureddine El Aouad,
  • Silvia Rodriguez,
  • Felipe Otalvaro,
  • Diego Cortes,
  • Jairo Saez

DOI
https://doi.org/10.1107/S1600536808018266
Journal volume & issue
Vol. 64, no. 7
pp. o1305 – o1305

Abstract

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The title molecule, (E)-2,3′,4,5-tetramethoxystilbene, C18H20O4, is virtually planar. The angle between the two benzene rings is 4.06 (6)°. The intermolecular interactions present in the structure are weak. There are C—H...O hydrogen bonds and C—H...π-electron ring interactions. The molecules are ordered into planes that are parallel to (overline{1}01). The distance between adjacent planes is about 3.3 Å and therefore π–π electron interactions between the aromatic planes are also plausible.