Bis(2-methyl­piperidinium) penta­chlorido­anti­monate(III)

The asymmetric unit of the title compound, (C(6)H(14)N)(2)[SbCl(5)], contains one cation and half of the anion on a special position (specifically, the Sb(III) ion and three chloride anions are situated on a mirror plane). In the [SbCl(5)](2−) unit, the Sb(III) ion is coordinated by five chloride anions [Sb—Cl = 2.3721 (11)–2.6656 (12) Å] in a distorted square-pyramidal geometry. However, one chloride anion from a neighbouring [SbCl(5)](2−) unit provides a short Sb⋯Cl contact of 3.3600 (12) Å and completes the Sb coordination environment up to an elongated octa­hedron. In the crystal, N—H⋯Cl hydrogen bonds link cations and anions into columns propagating along [100].