The secondary structure of the title compound, C8H7N3O, consists Of O-H ...
N hydrogen-bonding catemers, similar to those of the parent 1,2,4-triazole
, where the molecules are linked by N-H ... N bonds. Chains related by tran
slation are linked by CH(triazole)... O/N interactions to give a tertiary s
tructure of corrugated sheets parallel to the ac plane. The quaternary stru
cture is due to C-H(Ph)... O contacts and to the stacking of triazole rings
from centrosymmetrically related sheets.