Acta Crystallographica Section E (Jan 2008)
3-Amino-1-phenyl-4-(propan-2-ylidene)pyrazol-5(4H)-one
Abstract
In the title molecule, C12H13N3O, the phenyl and the pyrazole rings make a dihedral angle of 7.5 (2)°. Intermolecular N—H...O hydrogen bonds involving the amino group link the molecules into a three-dimensional framework.
