Diisobutyl-ammonium tri-phenyl(2-thiolato-acetato-κ2 O, S)stannate(IV)

Abstract

Crystals of the title salt, (C₈H₂₀N)[Sn(C₆H₅)₃(C₂H₂O₂S)], comprise diisobutyl-ammonium cations and mercapto-acetato-tri-phenyl-stannate(IV) anions. The bidentate binding mode of the mercapto-acetate ligand gives rise to a five-coordinated, ionic tri-phenyl-tin complex with a distorted cis-trigonal-bipyramidal geometry around the tin atom. In the crystal, charge-assisted ammonium-N-H⋯O(carboxyl-ate) hydrogen-bonding connects two cations and two anions into a four-ion aggregate. Two positions were resolved for one of the phenyl rings with the major component having a site occupancy factor of 0.60 (3).

Keywords: cis-trigonal–bipyramid coordination; crystal structure; hydrogen bonding; salt.

Figure 1

The mol­ecular structures of the two ions comprising the asymmetric unit in the title salt showing the atom-labelling scheme and anisotropic displacement ellipsoids at the 50% probability level.

Figure 2

A view of the four-ion aggregate in the crystal of the title salt. Dashed lines indicate hydrogen bonds.