Photochemical preparation and reactivity of platinum(<scp>II</scp>) complexes with oxygen-donor ligands. Description and synthesis of di-µ-chloro-dichlorobis(substituted pyridine)diplatinum(<scp>II</scp>)
The complexes [PtCl2YL](Y = substitutedpyridine, L = oxygen-donorligand) have been obtained by irradiation of [PtCl2Y(CH2CH2)] in the appropriate solvent. Substitutions of the oxygenated ligands by dimethyl sulphide, ethylene, and acetonitrile have been studied. At room temperature and in the absence of external ligands, loss of the oxygen-donorligand is observed and dichloro-bridged diplatinum complexes