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动态还是非动态? 在hexabenzocoronene纳米管中的螺旋轨迹被可拆卸的合辅助器偏向
Wei Zhang1, Wusong Jin, Takanori Fukushima
1RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
附加到六--enzocoronene (HBC) 衍生物的合复合物诱导螺丝感选择性组装到光学活性纳米管和纳米线圈中. 无金属纳米管在吊移除后仍然保持着性,显示出强大的螺旋结构.
科学领域:
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
背景情况:
- 赫克萨-佩里-赫克萨本佐科罗 (HBC) 衍生物以它们的自组装特性而闻名.
- 状金属循环可以影响有机分子的组装.
- 在自组装纳米结构中控制螺旋性性是一种重大挑战.
研究的目的:
- 为了研究HBC衍生物的螺丝感选择性组装,这些HBC衍生物与性复合体功能化.
- 探索光学活性纳米管和纳米线圈的形成.
- 为了确定自组装结构在去除金属后的稳定性和奇拉性保留.
主要方法:
- 蒸汽扩散诱导的HBC衍生物与使用以太或甲醇的奇拉 (BINAP) Pt(II) 金属循环的自我组装.
- 使用扫描电子显微镜 (SEM) 进行纳米结构的表征.
- 使用循环二重化 (CD) 谱学进行奇拉性分析和对二聚体过量的评估.
主要成果:
- 螺丝感选择性组装产生了光学活性纳米管 (NT (((Py) ((((R) -Pt)) 和NT (((Py) ((([(S) -Pt)) 具有可预测的螺旋性 (M或P).
- 甲醇的使用导致了纳米线圈的形成,其二聚体过量为60% (80:20比).
- 在去除Pt后获得的无金属纳米管 (NT(Py)) 在加热时保留了光学活性和合完整性.
结论:
- 状金吊有效地控制了自组装的HBC纳米管的螺旋性状性.
- 自组装的螺旋结构表现出了显著的稳定性,即使在金属复合物被移除后,也保持了奇拉性.
- 这项工作为创建具有可调节螺旋性质的性纳米结构提供了一条途径.
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