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.;