In the title mol-ecular salt, C(5)H(13)N(2)O(2)S(+)·Cl(-), the complete cation is generated by crystallographic mirror symmetry, with both N atoms, the S atom and one C atom lying on the reflecting plane. The chloride ion also lies on the mirror plane. The piperazinium ring adopts a chair conformation and the N-S bond adopts an equatorial orientation. In the crystal structure, the component ion...

In the title crystal structure, C(12)H(22)NOSi(+)·Cl(-), anions and cations are linked via O-H⋯Cl, N-H⋯Cl and N-H⋯O hydrogen bonds to form a two-dimensional network parallel to (101). Within the hydrogen-bonded network, R(4) (2)(22) ring motifs are stacked along [010].

The ions of the title chloro-form-solvated salt, C(11)H(17)N(2) (+)·Cl(-)·CHCl(3), are linked by a strong N-H⋯Cl hydrogen bond; the solvent mol-ecule also inter-acts with the chloride ion through a C-H⋯Cl hydrogen bond. Additionally, neighboring cations form weak hydrogen bonds to the anion, resulting in a supra-molecular ribbon that runs along the a axis.

In the crystal of the title hydrated mol-ecular salt, C8H12NO(+)·Cl(-)·H2O, the water mol-ecule makes two O-H⋯Cl hydrogen bonds, generating [010] zigzag chains of alternating water mol-ecules and chloride ions. The cation is bonded to the chain by an O-H⋯O hydrogen bond and two weak C-H⋯Cl inter-actions. Weak aromatic π-π stacking [centroid-centroid separation = 3.5175 (15) Å] occurs between th...