in chloroform Pt-complex and PPh3 were dissolved in CHCl3, kept under stirring for 20 h at room temp.; solvent was evapd. under reduced pressure, filtered, washed with Et2O, dried in stream of dry air; elem. anal.;

in chloroform Pt-complex and PPh3 were dissolved in CHCl3, kept under stirring for 20 h at room temp.; solvent was evapd. under reduced pressure, filtered, washed with Et2O, dried in stream of dry air; elem. anal.;

in chloroform Pt-complex and PPh3 were dissolved in CHCl3, kept under stirring for 20 h at room temp.; solvent was evapd. under reduced pressure, filtered, washed with Et2O, dried in stream of dry air; elem. anal.;