Dynamic stereochemistry of cis-[PtH(SiR3)(PPh3)2]. Spontaneous ligand interchange with retentilon of nuclear spin–spin correlation
Abstract
Above 0 °C in various solvents the complexes cis-[PtH(SiR3)(PPh3)2] with R = C6H5, p-ClC6H4, or p-MeC6H4 undergo spontaneous interchange of the PPh3 ligand position by a mechanism which retains P ⋯(Pt)⋯ H spin correlation and is thus intramolecular and non-dissociative within the limits of the n.m.r. experiment.