Acta Cryst. (2011). E67, m97-m98  [ doi:10.1107/S1600536810051925 ]

Potassium bis[bis(1-benzyl-3-methylimidazolium)silver(I)] tris(hexafluoridophosphate)

R. A. Haque, A. W. Salman, C. K. Whai, C. K. Quah and H.-K. Fun

Abstract: In the title compound, K[Ag(C₁₁H₁₂N₂)₂]₂(PF₆)₃, the 12-coordinate potassium cation lies on a crystallographic twofold axis and one of the hexafluorophosphate anions is generated by symmetry. In the complex cation, the Ag^I ion is coordinated by two C atoms; the two imidazolium rings are orientated at a dihedral angle of 8.14 (14)°. In the 1-benzyl-3-methylimidazolium units, the dihedral angles between imidazolium and phenyl rings are 80.47 (15) and 76.53 (14)°. The F atoms of the general-position hexafluorophosphate anion are disordered over two sets of sites in a 0.767 (17):0.233 (17) ratio. In the crystal, the hexafluorophosphate anions link the cations into three-dimensional networks via intermolecular C-HF hydrogen bonds and are further consolidated by - stacking [centroid-centroid distances = 3.5518 (15) Å] interactions.

Online 18 December 2010

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