Methyl 1H-1,2,3-triazole-4-carboxylate

Methyl 1-methyl-1H-1,2,3-triazole-4-carboxylate

The title mol­ecule, C₅H₇N₃O₂, has an almost planar conformation, with a maximum deviation of 0.043 (3) Å, except for the methyl H atoms. In the crystal structure, inter­molecular C—H⋯O hydrogen bonds link the mol­ecules into layers parallel to the bc plane. Inter­molecular π–π stacking inter­actions [centroid–centroid distances = 3.685 (2) and 3.697 (2) Å] are observed between the parallel triazole rings.

Methyl 2-methyl-2H-1,2,3-triazole-4-carboxyl-ate

In the title compound, C(5)H(7)N(3)O(2), all non-H atoms lie in a common plane, with a maximum deviation of 0.061 (2)° for the ester methyl C atom. The structure is stabilized by inter-molecular C-H⋯O hydrogen bonds.