【摘要】 <正> 1970年Coutts成功地合成了第一个π-烯丙基稀土配合物（C₅H₅）₂ScC₃H₅。但由于其稳定性差仅有几篇报道。1987年黄祖恩等报道了Li₂Ce（C₃H₅）₅·3D（D为二氧六环）的晶体结构。1991年吴文玲等报道了第二个π-烯丙基稀土配合物（C₃H₅）₂CeCl₅Mg²（tmed）₂的晶体结构。更多还原

【Abstract】 Seven π-allyl-rare earth complexes were synthesized by reacting anhydrous lanthanidethichloride with C₃H₅Li at 1:4 mol ratio in THF-ether solution. The complexes with generalformula LiLn（C₃H₅）₄·nD（Ln=La, n = 3; Ln = Ce, Pr, Nd, Sm, Gd, n = 2; Ln = Y, n= 2.5;D= dioxane） Were characterized by clemental analyses and IR spectra. The single crystalof LiCe（C₃H₅）₄·4D complex was obtained and its structure was determined by X-ray diffr-action at 233K. The crystal belongs to crthorhombic system with space group I2₁2₁2₁, a =11. 325（3）A, b = 16.645（5）A, c = 19.605（5）A, α=β=γ= 90°; v = 3695.49A³; Z = 4.更多还原