Acta Crystallographica Section E (Jul 2010)

8-[(1E)-1-(2-Aminophenyliminio)ethyl]-2-oxo-2H-chromen-7-olate

  • E. S. Aazam,
  • A. F. El Husseiny,
  • H. M. Al-Amri,
  • Orhan Büyükgüngör

DOI
https://doi.org/10.1107/s1600536810023093
Journal volume & issue
Vol. 66, no. 7
pp. o1796 – o1796

Abstract

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The title Schiff base, C17H14N2O3, exists as an NH tautomer with the H atom of the phenol group transferred to the imine N atom. The iminium H atom is involved in a strong intramolecular N+—H...O− hydrogen bond to the phenolate O atom, forming an S(6) motif. In the crystal structure, N—H...O hydrogen bonds form a C(9) chain parallel to [100] and a C(11) chain parallel to [010], while C—H...O hydrogen bonds form a C(11) chain parallel to [010]. The combination of N—H...O and C—H...O hydrogen bonds generates R43(30) rings parallel to the ab plane