“…The solvents («-hexane, «-heptane, benzene, CH2C12, diethyl ether, acetone) were dehydrated by conventional methods19 and deaerated by bubbling with nitrogen. Tetrahydrofuran (THF) was purified as described in ref 20 and freshly distilled before use. CH3I was purified as described in ref 21 and stabilized with Hg.…”