in tetrahydrofuran; diethyl ether; cyclohexane Addn. of PhLi in cyclohexane/diethylether unter N2 to a soln. of Mo-complex and Pt-complex in THF, standing of resulting soln. overnight.; Evapn. of solvent in vac., extg. of oil (hexane), column chromy. (Florisil, CH2Cl2/hexane), recrystn. (CH2Cl2/pentane), elem. anal.;

NH3 in ammonia NH3 (liquid); inert atmosphere;

in acetonitrile; benzene Electrolysis; preelectrolyzing solvents/TBAP (activated alumina in soln.), adding cis-(PtCl2(PEt3)2), electrolyzing at -2.1 V to near zero current (Ar, 3h); filtering, evapg., reduction to dryness, adding charcoal, extg. (benzene), filtering, concg., chromy. (alumina, benzene/hexane), evapg.; gas chromy., elem. anal.;

in benzene-d6; acetonitrile Electrolysis; preelectrolyzing solvents/TBAP, adding cis-(PtCl2(PEt3)2), electrolyzing at -2.1 V to near zero current (Ar, 3h); NMR;

in tetrahydrofuran under Ar atm., -40°C, 1:2; identified by NMR;

Na/benzophenone ketyl in tetrahydrofuran byproducts: benzophenone; N2-atmosphere; dropwise addn. of ketyl (stirring, room temp., 45 min); filtering, evapn. (vac.), hexane addn., filtration, concg., crystn. (-78°C, 1 week), washing (hexanes, -78°C), drying (vac.); detd. by (31)P NMR spectroscopy;

elem. anal.;

in tetrahydrofuran; diethyl ether; cyclohexane Addn. of PhLi in cyclohexane/diethylether unter N2 to a soln. of Cr-complex and Pt-complex in THF, standing of resulting soln. overnight.; Evapn. of solvent in vac., extg. of oil (hexane), column chromy. (Florisil, CH2Cl2/hexane), recrystn. (CH2Cl2/pentane), elem. anal.;

in tetrahydrofuran; diethyl ether; cyclohexane Addn. of PhLi in cyclohexane/diethylether unter N2 to a soln. of W-complex and Pt-complex in THF, standing of resulting soln. overnight.; Evapn. of solvent in vac., extg. of oil (hexane), column chromy. (Florisil, CH2Cl2/hexane), recrystn. (CH2Cl2/pentane), elem. anal.;

in toluene under protective gas; room temp.;