Crystal structure of 6-ethoxypyridin-1-ium-2-olate

Abstract

In the title compound, C7H9NO2, all non-H atoms are essentially coplanar [r.m.s. deviation = 0.032 Å]. The largest deviation from the plane of the pyridine ring is 0.105 (6) Å for the terminal C atom of the eth­oxy group. In the crystal, mol­ecules are linked by pairs of N—H⋯O hydrogen bonds, forming inversion dimers. These dimers are further linked by C—H⋯π inter­actions and weak π–π inter­actions between pyridine rings [centroid–centroid distance = 4.023 (1) Å].