Synthesis, structure and redox behaviour of gold and silver complexes with 3-ferrocenylpyridine

3-Ferrocenylpyridine (Fcpy) reacts with gold(I) derivatives to afford neutral, [AuR(Fcpy)] (R=Cl, C6F5), or cationic complexes, [Au(Fcpy)(PPh3)]OTf. Reaction with [Au(C6F5)2(OEt2)2]ClO4 or [Au(C6F5)3(OEt2)] gives the gold(III) complexes [Au(C6F5)2(Fcpy)2]ClO4 or [Au(C6F5)3(Fcpy)], respectively. The silver derivatives [Ag(Fcpy)(PPh3)]OTf and [Ag(OTf)(Fcpy)2] have also been synthesised.