Bis(2-{[2,8-bis­(trifluoro­meth­yl)quinolin-4-yl](hydr­oxy)meth­yl}piperidin-1-ium) tetra­chloridodiphenyl­stannate(IV)

In the title salt, (C(17)H(17)F(6)N(2)O)(2)[Sn(C(6)H(5))(2)Cl(4)], the complete anion is generated by crystallograaphic inversion symmetry, giving a trans-SnC(2)Cl(4) octa­hedral coordination geometry for the metal atom. In the cation, the quinoline residue is almost normal to the other atoms, so that the ion has an L-shaped conformation [the C—C—C—C torsion angle linking the fused-ring systems is 100.9 (7)°]; the six-membered piperidin-1-ium ring has a chair conformation. An intra­molecular N—H⋯O inter­action occurs. In the crystal, N—H⋯Cl and O—H⋯Cl hydrogen bonds link the components into a supra­molecular chain propagating along the a axis. C—H⋯Cl inter­actions are also present.