fac-(2-Amidoethyl-κ2C1,O)aquatrichloridotin(IV) 1,4,7,10,13,16-hexaoxacyclooctadecane (2/1)

The asymmetric unit of the title compound, [Sn(C3H6NO)Cl3(H2O)]2·C12H24O6, comprises a six-coordinate tin complex and a 18-crown-6 molecule, the latter disposed about a centre of inversion. The tin atom is coordinated by three Cl atoms, that define a facial arrangement, a chelating C-,O- ligand, and a water molecule. The resulting CCl3O2 donor set defines a distorted octahedral geometry. The tin-bound aqua ligand forms O—H...O hydrogen bonds to the centrosymmetric 18-crown-6 molecule, resulting in a tri-molecular aggregate. These assemble into a supramolecular chain along the a axis being connected by N—H...O hydrogen bonds