Bis(3-hy-droxy-methyl-anilinium) hexa-chloridostannate(IV).

In the title compound, (C(7)H(10)NO)(2)[SnCl(6)], the Sn(IV) atom, located on an inversion center, exists in an octa-hedral coordination environment. The crystal structure exhibits alternating organic and inorganic layers parallel to ([Formula: see text]01). The cations and anions are linked via inter-molecular N-H⋯O, N-H⋯Cl and O-H⋯Cl hydrogen bonds.

4-(Carboxy-meth-yl)anilinium chloride.

In the crystal of the title compound, C(8)H(10)NO(2) (+)·Cl(-), alternating layers of hydro-phobic and hydro-philic zones stack along the c axis. The chloride anions are sandwiched between the 4-(carboxy-meth-yl)anilinium layers, forming inter-molecular O-H⋯Cl and N-H⋯Cl hydrogen bonds with the ammonium and carboxyl groups of the cations. In addition, inter-molecular N-H⋯O and weak C-H⋯O and C-H⋯Cl hydrogen bonds help stabilize the crystal structure.

3,4-Dimethyl-anilinium chloride monohydrate.

The crystal structure of the title compound, C(8)H(12)N(+)·Cl(-)·H(2)O, consists of hydro-phobic layers of dimethyl-anilinium cations parallel to the bc plane alternated by hydro-philic layers of chloride anions and water mol-ecules. The layers are linked by N-H⋯O and N-H⋯Cl hydrogen bonds involving the ammonium groups of the cations. The cohesion of the ionic structure is further stabilized by O-H⋯Cl hydrogen-bonding inter-actions.