acetonitrile in diethylene glycol (Ar); to soln. of Mo-acetonitrile complex (from Mo(CO)6 and MeCN) was added fulvenderiv., mixt. was heated at 60-70°C for 2 and left to stand overnight at room temp.; formed crystals were filtered off, washed with hexane and dried in vac.(1 mmHg, 50-60°C, 6 h); from mother liquor was obtained 2nd cropby pptn. with hexane and drying as above; elem. anal.;

in tetrahydrofuran dry, inert atm., under N2, 24 h, room temp.; filtration, evapn. (vac.);