Etude du comportement photochimique de complexes {PtCl2(oléfine)(amine)}, influence de la nature de l'olefine et de la configuration du complexe

Irradiation of complexes {PtCl₂(olefine)(amine)} leads to the departure of the olefinic ligand forming a dimeric compound {PtCl₂(amine)}₂ which has a trans configuration. The same behaviour is observed at different irradiation wavelengths, with variation of the nature of the coordinated olefin and with a cis or trans configuration of the starting compound. Experimental results show that the primary photochemical reaction pathway arises probably via a (d → π^★ C₂H₄) charge transfer existed state. A simultaneous cis → trans photoisomerization is observed in the case of the cis complexes.