Date Published: July 01, 2012
Publisher: International Union of Crystallography
Author(s): David Ortegon-Reyna, Cesar Garcias-Morales, Efren V. García-Báez, Armando Ariza-Castolo, Francisco J. Martínez-Martínez.
The title Schiff base compound, C15H15NO2, crystallized as the iminium–phenolate zwitterion. The H atom is localized on the imine N atom, forming a strong intramolecular hydrogen bond with the phenolate O atom, and giving rise to an S(6) ring motif. The molecule has an E conformation about the C=N bond. In the crystal, molecules are linked by O—H⋯O hydrogen bonds, forming chains propagating along . There are also C—H⋯O interactions present.
For general background to the characteristics of Schiff bases, see: Krause et al. (1995 ▶); Hadjoudis et al. (2004 ▶). For related structures, see: Dominiak et al. (2006 ▶); Santos-Contreras et al. (2009 ▶); Ng (2008 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶).