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In the title compound C10H11N3O, the mean plane of the indole ring system (r.m.s. deviation 0.0131 Å) subtends a dihedral angle of 87.27 (5)° to the almost planar acetohydrazide substituent (r.m.s. deviation 0.0291 Å). In the crystal, bifurcated N—H
(O,N) and N—HN hydrogen bonds involving the pyrrole N–H grouping combine to form zigzag chains along a. Additional N—HO contacts from the hydrazide N–H group augmented by C—Hπ interactions link the molecules into chains along the a axis. The overall effect of these contacts is a three-dimensional network structure with molecules stacked along the b-axis direction.
(O,N) and N—HN hydrogen bonds involving the pyrrole N–H grouping combine to form zigzag chains along a. Additional N—HO contacts from the hydrazide N–H group augmented by C—Hπ interactions link the molecules into chains along the a axis. The overall effect of these contacts is a three-dimensional network structure with molecules stacked along the b-axis direction.
