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自1969年首次报道稀土环辛四烯基化合物Eu(C_8H_8)和Yb(C_8H_8)的合成以来,相继合成K[Ln(C_8H_8)_2],[Ln(C_8H_8)Cl·2THF]_2和[Ln(C_8H_8)·2THF]等,还报
Ln (C_8H_8) Cl · 2THF] _2 and [Ln (C_8H_8) Cl_2THF] _2 were successively synthesized from the first synthesis of rare earth cyclooctatetraenoids Eu (C_8H_8) and Yb (C_8H_8) C_8H_8) · 2THF], etc., also reported