Complexes of trimethylplatinum(IV) with butane-2,3-dione monoxime
Abstract
The dimeric complex of butane-2,3-dione monoxime (Hbdm) with trimethylplatinum(IV), [{PtMe3(bdm)}2]1, and its pyridine (py) and 2,2′-bipyridyl (bipy) adducts [PtMe3(bdm)(py)] and [PtMe3(bdm)(bipy)], show three different configurations for the ionised monoxime ligand. Dimer 1 forms a fluxional solvated monomer in co-ordinating solvents. Its solution-state stereodynamics in CD3OD have been measured by two-dimensional exchange NMR spectroscopy and a ‘windscreen-wiper’ mechanism proposed which is novel in trimethylplatinum(IV) chemistry.