Key indicators: single-crystal X-ray study; T = 115 K; mean (C-C) = 0.006 Å; R factor = 0.035; wR factor = 0.083; data-to-parameter ratio = 21.8.

The title compound, (C6H14N)2[Sn(C6H5)2Cl4], contains cyclo­hexyl­ammonium cations in general positions and a stannate(IV) anion that is located on a twofold rotation axis. The SnIV atom in the complex anion is surrounded by four Cl− ligands and two trans-phenyl groups in a distorted octa­hedral configuration. The anions are connected with the cations through N—H⋯Cl hydrogen bonds. Every cation is involved in three N—H⋯Cl bonds to the chloride ligands of three different anions, and each chloride ligand is linked to two cations. This arrangement leads to a layered structure parallel to (010).

Key indicators: single-crystal X-ray study; T = 293 K; mean (C-C) = 0.002 Å; R factor = 0.029; wR factor = 0.080; data-to-parameter ratio = 16.4.In the title salt, [(CH 3 ) 2 CH] 2 NH 2 ] + Á[C 6 H 5 PO 2 (OH)] À , the anions are linked by pairs of O-HÁ Á ÁO hydrogen bonds, forming inversion dimers. These dimers are bridged by the cations via N-HÁ Á ÁO hydrogen bonds, leading to a threedimensional structure. Related literature ExperimentalCrystal data

The crystal structure of the title compound, (C6H14N)3[Sn(C2O4)2Cl2]Cl·H2O, contains three cyclo­hexyl­ammonium cations, one stannate(IV) dianion, one isolated chloride anion and one lattice water mol­ecule. The cyclo­hexyl­ammonium cations adopt chair conformations. In the complex anion, two bidentate oxalate ligands and two chloride anions in cis positions coordinate octa­hedrally to the central SnIV atom. The cohesion of the mol­ecular entities is ensured by the formation of N—H⋯O, O—H⋯O, O—H⋯Cl and N—H⋯Cl inter­actions involving cations, anions and the lattice water mol­ecule, giving rise to a layer-like arrangement parallel to (010).

In the title salt, (CyNH3)2[Sn(Ph2)(C2O4)2] (Cy is cyclo­hexyl and Ph is phen­yl), the SnPh2 moiety is chelated by two oxalate anions, leading to a cis arrangement within the distorted octa­hedral coordination sphere of the SnIV atom.