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合成Ln(Ⅲ ) Cu(Ⅱ )与全新型直链醚 氨基酸Schiff碱的异核配合物并提出合成方法 .经元素分析、磁化率、光谱及 2D COSY NMR等表征 ,确定其组成为 [LnCu2(H2 TALY) (NO3 ) 5 ](NO3 ) 2 ·nH2 O (Ln =La ,Nd ,Sm ,Gd ,n =4;Ln =Yb ,Y ,n =3) ,式中H2 TALY为四甘醇醛缩双赖氨酸Schiff碱 .探讨了配位作用 ,特别有意义的是该类新配合物在不加助催化剂时 ,可单独催化聚合甲基丙烯酸甲酯 (MMA) ,转化率可高达1 0 0 % ,分子量约为 1 2万 ,它们可能成为一类具有特点的新催化剂体系 ,同时证明脂肪族Schiff碱配合物对MMA聚合反应也具有优良的催化活性
The heteronuclear complex of Ln (Ⅲ) Cu (Ⅱ) with a new linear chain ether amino acid Schiff base was synthesized and characterized by elemental analysis, magnetic susceptibility, optical spectra and 2D COZY NMR. The results showed that the composition of [LnCu2 H2 TALY (NO3) 5] (NO3) 2 · nH2 O (Ln = La, Nd, Sm, Gd, n = 4; Ln = Yb, Y, n = 3) Schiff base of double bilirubin.It is of particular interest to study the coordination effect that the novel complexes can catalyze the polymerization of methyl methacrylate (MMA) alone with no cocatalyst and the conversion rate can be as high as 10 0%, molecular weight of about 12000, they may become a new class of catalyst system with the characteristics, at the same time, prove that the aliphatic Schiff base complex also has excellent catalytic activity for MMA polymerization