摘要:
Reaction of ytterbium metal with HgPh(C6F5) and HC5Me5 in THF (THF = tetrahydrofuran) affords seven-coordinate, monomeric [Yb(C5Me5)(C6F5)(THF)(3)] (1), which is presumed to be formed by protolysis of a transitory "YbPh(C6F5)" species with HC5Me5. In the absence of the latter, reaction of ytterbium metal and HgPh(C6F5) gave a mixture of products, including the structurally characterized [Yb(C6F5)(2)(THF)(4)] (2) and the ytterbium(III) complex [YbPh3(THF)(3)] (3).