Bis(1,1-dimethylguanidinium) tetraaquadimethyltin(IV) bis(sulfate)

Mouhamadou Sembene Boye (1) , Aminata Diasse-Sarra (1) , Eric Lebraud (2) , Philippe Guionneau (2)

1 Département de Chimie
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

Single crystals of the title salt, (C₃H₁₀N₃)₂[Sn(CH₃)₂(H₂O)₄](SO₄)₂, formed concomitantly with the already known [Sn(CH₃)₃]₂SO₄*2H₂O. In the title structure, the Sn^IV atom displays a slightly distorted octahedral coordination geometry defined by four O water atoms in the equatorial positions and two methyl groups in the axial positions. In the crystal, various O-HO and N-HO hydrogen-bonding interactions between the organic cation and the coordinated water molecules as donors and the sulfate O atoms as acceptors result in a three-dimensional structure. The Sn^IV atom is located on an inversion centre, resulting in half of the complex metal cation being in the asymmetric unit.

Mots clés: Crystal structure; Organic compounds

Domaines: Matériaux

Mouhamadou Sembene Boye, Aminata Diasse-Sarra, Eric Lebraud, Philippe Guionneau. Bis(1,1-dimethylguanidinium) tetraaquadimethyltin(IV) bis(sulfate). Acta Crystallographica Section E : Structure Reports Online [2001-2014], 2012, 68 (1), pp.m70. ⟨10.1107/S1600536811053761⟩. ⟨hal-00654557⟩