反应条件
in xylene Se8 dissolved in xylene under reflux at 140°C, addn. of Ru3(CO)12, mixt. brought to ambient temp., soln. poured in an ampoule, ampoule sealed and placed in autoclave, autoclave vessel filled to 80 vol-percent with water, heated at 250°C for 30 d; product sepd. using PTFE filter, washed with small portions of diethyl ether;