希土烯丙基化合物的研究——Ⅷ.镝、钬、铒、镱和镥的2-甲基烯丙基化合物的合成

STUDIES ON RARE EARTH-ALLYL COMPOUNDS VII. THE SYNTHESIS OF METHALLYL COMPOUNDS OF Dy, Ho, Er, Yb AND Lu

用无水希土氯化物与2-甲基烯丙基氯化镁及四甲基乙二胺,0℃下,在四氢呋喃中反应,加乙醚后可得到五个含2-甲基烯丙基的重希土元素的化合物。经元素分析、红外光谱和质谱分析的鉴定,确定该化合物的组成为Ln(C_4H_7)_2Cl_5Mg_2(tmed)_2。

Five new rare earth-mcthallyl lanthanidc compounds Ln(C4H7)2Cl5Mg2(tmed)2(Ln = Dy, Ho, Er, Yb and Lu), which arc very sensitive to air and moisture, have been synthesized by the reaction of anhydrous LnCl3 with mcthallylmagncsium chloride and tctramcthyl-cthylcncdiamine (tmcd) in THF at 0℃. The compounds were characterized by elemental analyses, infrared spectra and mass spectra.