Synthesis and structural characterisation of stable cationic gold(i) alkene complexes

Treatment of [AuCl(PBu(t)(3))] with AgSbF(6) in CH(2)Cl(2) at room temperature in the presence of the alkenes norbornene, norbornadiene, trans-cyclooctene, and also interestingly, isobutylene, leads to the formation of stable crystalline complexes [Au(PBu(t)(3))(alkene)][SbF(6)], characterised by NMR spectroscopy and X-ray crystallography.