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1975年CouPs和Wailes首次合成了第一个η~3-烯丙基稀士配合物——Cp_2Sc(η~3-C_3H_5)。由于该类配合物稳定性差难于合成,目前为止文献上仅有几篇报道。其中代表性的例子是1991年吴文玲等人合成的(η~3-cC_3H_5)_2CeCl_5Mg_2(tmed)_2,并测定了其晶
In 1975, CouPs and Wailes synthesized the first η ~ 3-allyl rare earth complex-Cp_2Sc (η ~ 3-C_3H_5). Due to the poor stability of these complexes in the synthesis, so far only a few articles reported in the literature. A representative example of this is the (η ~ 3-cC_3H_5) _2CeCl_5Mg_2 (tmed) _2 synthesized by Wu et al. In 1991 and its crystal