ABSTRACT
The title compound, C8H7NO2, crystallizes as prismatic colourless crystals in space group P , with one mol-ecule in the asymmetric unit. The pyridine ring is fused to acrylic acid, forming an almost planar structure with an E-configuration about the double bond with a torsion angle of -6.1â (2)°. In the crystal, strong O-Hâ¯N inter-actions link the mol-ecules, forming chains along the [101] direction. Weak C-Hâ¯O inter-actions link adjacent chains along the [100] direction, generating an R 2 2(14) homosynthon. Finally, π-π stacking inter-actions lead to the formation of the three-dimensional structure. The supra-molecular analysis was supported by Hirshfeld surface and two-dimensional fingerprint plot analysis, indicating that the most abundant contacts are associated with Hâ¯H, Oâ¯H/Hâ¯O, Nâ¯H/Hâ¯N and Câ¯H/Hâ¯C inter-actions.