In the cation of the title compound, C(5)H(8)N(3) (+)·I(-), the C-N(H(2)) bond distance [1.338 (8) Å] is at the lower end of the range for aryl amines. In the crystal structure, cations and anions are linked via N-H⋯I hydrogen bonds, forming centrosymmetric four-component clusters.

In the cation of the title compound, C(5)H(8)N(3) (+)·Cl(-), the C-N(H(2)) bond distance [1.348 (3) Å] is at the lower end of the range for aryl amines. In the crystal structure, cations and anions are linked via N-H⋯Cl hydrogen bonds, forming one-dimensional chains along [100].

The title compound, C(13)H(17)NO(2), has an intra-molecular N-H⋯O hydrogen bond, forming a planar six-membered ring with a mean deviation of 0.015 (5) Å from the plane. This plane makes a dihedral angle of 7.19 (8)° with the adjacent phenyl ring. Through an inter-molecular O-H⋯O hydrogen bond, the mol-ecules with their 2(1) screw and b-translation equivalents form a helical chain running parall...