New amidopyridinate chloride complexes [Ap´Y(THF)](μ2-Cl)2(μ3-Cl)Li(THF)}2, [Ap9MeLn(THF)](μ2-Cl)3Li(THF)2}2 (Ln = Y, Nd, Sm), and [Ap*Ln(THF)](μ2-Cl)3Li(THF)2}2 (Ln = Nd, Sm) were synthesized by the exchange reactions of lithium amidopyridinates ApLi(OEt2) (Ap´ is N-(2,6-diisopropylphenyl)-6-(2,6-dimethylphenyl)pyridine-2-amine; Ap9Me is N-mesityl-6-(2,4,6-triisopropylphenyl)pyridine-2-amine; Ap* is N-(2,6-diisopropylphenyl)-6-(2,4,6-triisopropylphenyl)pyridine-2-amine) with anhydrous rare earth chlorides. The X-ray diffraction study showed that the amidopyridinate chloride derivatives are heterobimetallic ate-complexes, in which two rare earth metal atoms are linked by bridging chloride ligands and bridging Cl—Li—Cl groups. The three-component system [Ap*Nd(THF)](μ2-Cl)3Li(THF)2}2—AlBui 3—[Ph3C][B(C6F5)4] (1: 10: 1 molar ratio) catalyzes the isoprene polymerization.
                                    通过
氨吡啶锂 ApLi(OEt2) (Ap´为 N-(2,6-二异丙基苯基)-6(2,6-二异丙基苯基)-6(2,6-二异丙基苯基)-6(2,6-二异丙基苯基)-6(2,6-二异丙基苯基)-6(2,6-二异丙基苯基)-6(2,6-二异丙基苯基)-6(2,6-二异丙基苯基)-6(2,6-二异丙基苯基)Ap´是 N-(2,6-二异丙基苯基)-6-(2,6-二甲基苯基)
吡啶-2-胺;Ap9Me 是 N-甲磺酰基-6-(2,4,6-
三异丙基苯基)
吡啶-2-胺;Ap* 是 N-(2,6-二异丙基苯基)-6-(2,4,6-
三异丙基苯基)
吡啶-2-胺)和无
水稀土
氯化物。X 射线衍射研究表明,脒基
吡啶盐酸盐氯化物衍
生物是一种杂多
金属迭合物,其中两个稀土
金属原子通过桥接的
氯配体和桥接的 Cli-Li-Cl 基团相连。三组分体系[Ap*Nd(THF)](μ2-Cl)3Li(THF)2}2-AlBui 3-[Ph3C][B(
C6F5)4](摩尔比为 1:10:1)可催化
异戊二烯聚合。