Synthesis of the First Organopalladium(IV) Cations, including the First X-Ray Study of Isostructural Organopalladium(IV) and Platinum(IV) Complexes, [fac-MMe3{tris(pyrazol-1-yI)methane-N,N',N'' }]I

Stable organopalladium(IV) complexes [fac-PdMe3(L)]1 (L = tridentate nitrogen donor ligand) are formed on oxidative addition of iodomethane to PdMe2(L); the tris(pyrazo1-1-yl)methane complex is isostructural with the platinum(IV) analogue.