Macromolecular Helicity Induction on a Poly(phenylacetylene) with <i>C</i><sub>2</sub>-Symmetric Chiral [60]Fullerene-Bisadducts
作者:Tatsuya Nishimura、Kayo Tsuchiya、Sousuke Ohsawa、Katsuhiro Maeda、Eiji Yashima、Yosuke Nakamura、Jun Nishimura
DOI:10.1021/ja046633l
日期:2004.9.1
Three chiral N-methylfulleropyrrolidine bisadducts were prepared, isolated, and completely resolved into each enantiomer using a chiral HPLC column, which were then converted to the corresponding optically active, cationic C(60)-bisadducts to investigate if they could act as a macromolecular helicity inducer in a poly(phenylacetylene) bearing an anionic monoethyl phosphonate pendant (poly-1) in aqueous
制备、分离三种手性 N-甲基富勒咯烷双加合物,并使用手性 HPLC 柱将其完全拆分为每种对映异构体,然后将其转化为相应的光学活性阳离子 C(60)-双加合物,以研究它们是否可以作为大分子螺旋聚(苯乙炔)中的诱导剂,在水溶液中带有阴离子膦酸单乙酯挂件(poly-1)。在与手性 C(60)-双加合物络合后,只有反式 3 双加合物在二甲基亚砜-水混合物中聚合物骨架的紫外-可见区域表现出特征诱导圆二色性 (ICD),因为主要是单手的poly-1 的螺旋形成,而 trans-2 和 cis-3 双加合物在同一区域几乎没有诱导明显的 CD。