Optically active left (M)‐ and right (P)‐handed helical syndiotactic poly(methyl methacrylate)s (M‐ and P‐st‐PMMAs) with a helicity memory enantioselectively encapsulated the racemic C60 derivatives, such as 3,4‐fulleroproline tert‐butyl ester (rac‐1) and tetraallylated C60 (rac‐2), as well as the C60‐bound racemic 310‐helical peptides (rac‐3) within their helical cavities to form peapod‐like inclusion complexes and a unique “helix‐in‐helix” superstructure, respectively. The enantiomeric excess (ee) and separation factor (enantioselectivity) (α) of the analyte 1 (ee = 23%–25% and α = 2.35–2.50) encapsulated within the helical cavities of the M‐ and P‐st‐PMMAs were higher than those of the analytes 2 and 3 (ee = 4.3%–6.0% and α = 1.28–1.50). The optically pure (S)‐ and (R)‐1 were found to more efficiently induce an excess one‐handed helical conformation in the st‐PMMA backbone than the optically pure (S)‐ and (R)‐1‐phenylethylamine, resulting in intense mirror‐image vibrational circular dichroism (VCD) spectra in the PMMA IR regions. The excess one‐handed helices induced in the st‐PMMAs complexed with (S)‐ and (R)‐1 were memorized after replacement with the achiral C60, and the complexes exhibited induced electric CDs in the achiral C60 chromophore regions.

中文翻译：

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通过对映选择性封装在具有螺旋记忆的间规聚甲基丙烯酸甲酯的适应性螺旋腔内分离手性富勒烯衍生物的对映体

光学活性左（中号)‐ 和右 (磷)手螺旋间同立构聚甲基丙烯酸甲酯(中号- 和磷‐st-PMMA) 具有螺旋记忆，对映选择性地封装了外消旋 C60衍生物，例如 3,4-富勒脯氨酸叔‐丁酯（拉克‐1) 和四烯丙基化的 C60（拉克‐2) 以及 C60‐结合外消旋 310‐螺旋肽（拉克‐3）在其螺旋腔内分别形成豆荚状包合物和独特的“螺旋中螺旋”超结构。对映体过量 (ee) 和分离因子 (对映体选择性) (α) 分析物 1 (ee = 23%–25% 和α= 2.35–2.50）封装在螺旋腔内中号- 和磷‐st-PMMA 高于分析物 2 和 3（ee = 4.3%–6.0%，α= 1.28–1.50）。光学纯（S）- 和 （右)-1被发现比光学纯的(S）- 和 （右)-1-苯乙胺，在 PMMA IR 区域产生强烈的镜像振动圆二色性 (VCD) 光谱。 st-PMMA 中诱导的过量单手螺旋与 (S）- 和 （右)‐1 在用非手性 C 替换后被记住60，并且复合物在非手性 C 中表现出诱导电 CD60发色团区域。