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8-[(1E)-1-(2-Aminophenyl-iminio)eth-yl]-2-oxo-2H-chromen-7-olate.

ABSTRACT: The title Schiff base, C(17)H(14)N(2)O(3), 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 intra-molecular 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 R(4) (3)(30) rings parallel to the ab plane.

SUBMITTER: Aazam ES

PROVIDER: S-EPMC3006678 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature

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8-[(1E)-1-(2-Aminophenyl-iminio)eth-yl]-2-oxo-2H-chromen-7-olate.

Aazam E S ES El Husseiny A F AF Al-Amri H M HM Büyükgüngör Orhan O

Acta crystallographica. Section E, Structure reports online 20100626 Pt 7

The title Schiff base, C(17)H(14)N(2)O(3), 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 intra-molecular 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 b ...[more]

PMID: 21588006

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