Molecular and Crystal Structure of 2-{(E) a Redetermination}

Abstract

The crystal structure of the title compound, C<inf>14</inf>H<inf>12</inf>N<inf>2</inf>O<inf>3</inf>, was recently determined as a mixture of its neutral (OH containing) and zwitterionic (NH containing) forms, in a 0.60 (4): 0.40 (4) ratio using the X-ray determination. In this study, the title compound has been characterized by FT-IR and X-ray diffraction. The redetermination showed that the title compound has only enol (OH) form because of lack of the NH stretching vibration in FT-IR spectrum. In addition, the molecular structure and tautomerism of the title compound have been discussed. © 2016, Pleiades Publishing, Inc.