2-Phenyl-imidazole dihydrogen phosphate phospho-ric acid.

The crystal structure of the title compound, C(9)H(9)N(2) (+)·H(2)PO(4) (-)·H(3)PO(4), is stabilized by N-H⋯O and O-H⋯O hydrogen-bonding inter-actions, resulting in a two-dimensional network.

2-Phenyl-imidazolium acetate.

There are two 2-phenyl-imidazole cations and two acetate anions in the asymmetric unit of the title mol-ecular salt, C(9)H(9)N(2) (+)·C(2)H(3)O(2) (-). The dihredral angles between the five- and six-membered rings are 5.50 (2) and 6.90 (2)° in the two molecules. The structure is stabilized by N-H⋯O and weak C-H⋯O hydrogen-bonding inter-actions between the cations and anions, resulting in chains propagating in [110].

2-Phenyl-imidazolium chloride monohydrate.

In the title hydrated molecular salt, C(9)H(9)N(2) (+)·Cl(-)·H(2)O, the dihedral angle between the five- and six-membered rings in the cation is 18.00 (2)°. O-H⋯Cl, N-H⋯O and N-H⋯Cl hrdrogen-bonding inter-actions are present in the crystal structure.