in N,N-dimethyl-formamide Kinetics; oxygenation of solution at 25.+-.2 °C; detd. by (1)H and (31)P NMR, UV/Vis spectroscopy;

oxygen in acetonitrile; benzene Electrolysis; dissolving cis-(PtCl2(PPh3)2) in preelectrolyzed acetonitrile/benzene (5/2 v/v, containing 0.1 M TBAP, under N2), electrolysis to zero current at -1.60 V (2 - 3 h, Ar-atmosphere, room temp.), bubbling O2 through soln. (30 min, room temp.); evapg. (in vacuo), extg. (benzene), filtering, concg.;

oxygen in not given byproducts: N2; Irradiation (UV/VIS); O2 atmosphere; flash photolysis; not isolated; UV/VIS monitoring;

1: ethanol 2: HCl / ethanol View Scheme

1: ethanol 2: HCl / ethanol View Scheme

1: ethanol 2: HCl / ethanol View Scheme

in water under argon;

in ethanol 4 h, under argon; filtration, elem. anal.;