Crystal structure and Hirshfeld surface analysis of (Z)-4-oxo-4-{phenyl[(thiophen-2-yl)methyl]amino}but-2-enoic acid

In the title compound, C15H13NO3S, the molecular conformation is stable with the intramolecular O - H...O hydrogen bond forming a S(7) ring motif. In the crystal, molecules are connected by C - H..O hydrogen bonds, forming C(8) chains running along the a-axis direction. Cohesion of the packing is provided by weak van der Waals interactions between the chains. A Hirshfeld surface analysis was undertaken to investigate and quantify the intermolecular interactions. The thiophene ring is disordered in a 0.9466(17):0.0534(17) ratio over two positions rotated by 180°. © 2024 The Author(s).