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稀土烯丙基化合物的研究 Ⅰ.镧、铈、镨、钕、钐和钇的烯丙基化合物的合成
Studies on Rare Earth-Allyl Compounds I.Synthesis of Allyl Compounds of La,Ce,Pr,Nd,Sm and Y
【摘要】 <正> Wilke等人报道了f-元素的烯丙基配合物Th(η3-C3H5)4的合成,之后Lug]i等人又制得U(η3-C3H5)4.Tsutsui和Ely首次合成了含有烯丙基的稀土金属配合物(η5-C5H5)2Ln(η3-C3H5)(Ln=Sm、Er、Ho),并根据这些配合物的红外光谱在1533cm-1出现共轭三碳的不对称伸缩振动吸收峰认为稀土离子是与烯丙基的非定域π-电子键合的.Mazzei介绍了二氧六环(C4H8O2)的配合物,LiLn(C3H5)4·C4H8O2(Ln=Ce、Nd、Sm、Gd、Dy)的合成方法. 本文用无水稀土氯化物与烯丙基锂在四氢呋喃-乙醚中0℃反应,制得六个未见报道的稀土烯丙基化合物:
【Abstract】 Six new rare earth-allyl compounds, which are very sensitive to air and moisture, have been synthesized by the reaction of the anhydrous lanthanide trichloride with allyl-lithium in THF-ether solution. The compounds having the general formula Li2Ln(C3H5)5·nC4H8O2 (Ln = La, Y, n = 2.5; Ln - Ce, Pr, Nd, Sm, n = 3) were characterized by elemental analyses and their infrared spectra.
【基金】 中国科学院自然科学基金
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,1986年08期
- 【被引频次】6
- 【下载频次】47