Bahron Hadariah, Fadzel Fatimatuzzahraa Mohd, Kassim Karimah, Hemamalini Madhukar, Fun Hoong-Kun
Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 1;67(Pt 6):o1331-2. doi: 10.1107/S1600536811016655. Epub 2011 May 7.
The title compound, C(16)H(15)NO(4), exists as a zwitterion in the solid state, with the carb-oxy-lic acid group being deprotonated and the imine N atom being protonated. The mol-ecule adopts an E configuration about the C=N double bond. The dihedral angle between the benzene rings is 46.34 (4)°. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, adjacent mol-ecules are connected by inter-molecular O-H⋯O and C-H⋯O hydrogen bonds, forming supra-molecular ribbons along the a axis.
标题化合物C(16)H(15)NO(4)在固态时以两性离子形式存在,其中羧酸基团去质子化,亚胺N原子质子化。分子围绕C=N双键采取E构型。苯环之间的二面角为46.34 (4)°。分子内N-H⋯O氢键形成一个S(6)环结构。在晶体中,相邻分子通过分子间O-H⋯O和C-H⋯O氢键相连,沿a轴形成超分子带。