Research Article: Bis(2-methyl­piperidinium) penta­chlorido­anti­monate(III)

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Qian Xu.


The asymmetric unit of the title compound, (C6H14N)2[SbCl5], contains one cation and half of the anion on a special position (specifically, the SbIII ion and three chloride anions are situated on a mirror plane). In the [SbCl5]2− unit, the SbIII 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 [SbCl5]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].

Partial Text

For the crystal structure of bis­(4-benzyl­piperidinium) penta­chloridoanti­monate(III), see: Marsh (1995 ▶). For background to ferroelectric metal-organic frameworks, see: Fu et al. (2009 ▶); Ye et al. (2006 ▶); Zhang et al. (2008 ▶, 2010 ▶).