CO in hexane under N2; Ru compd. is dissolved in hexane, transferred to a Hoke cylinder, charged with CO (1 atm) and ethylene (3 atm), allowed to sit at room temp. for 20 h; gases are vented, IR, mixt. is reduced in volume, cooled to -20°C: crystn. of Ru3(CO)12, soln. is filtered after 12 h, reduced in volume to half, IR, soln. is cooled to -20°C, supernatant liq. is similar worked up; elem. anal.;

in diethyl ether N2; NMe2H bubbled through sol. of complex at -30°C; treated with 4 equivalents ethyl triflate at 25°C; stirred for 48 h;; evapd.; extd. into pentane; chromd. (silica gel, light petroleum); elem. anal.;;