有机形态的溶剂成型,由超分子状聚合物制成
Luka Đorđević1, Tomas Marangoni1, Tanja Miletić1
1†Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy.
Journal of the American Chemical Society
|May 21, 2015
概括
研究人员探索了 uracil-conjugated BINOL 和 OPE 分子如何自我组装成不同的纳米结构. 溶剂性质决定了形态,螺旋结构在显微水平上独特地表现出奇拉性.
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:
- 自组装和自我组织是创建复杂分子架构的基本过程.
- 体识别和体纳米结构的形成对于先进的材料和生物应用至关重要.
研究的目的:
- 为了研究 uracil-conjugated enantiopure (R) -或 (S) -1,1'-binaphthyl-2,2'-diol (BINOL) 和 oligo(p-phenylene ethynylene) (OPE) 染色体的自我组装行为.
- 了解溶剂特性如何影响有机纳米结构的形成和形态.
主要方法:
- 频谱技术包括紫外线,循环二极化 (CD),光和核磁共振 (NMR).
- 用于结构分析的小角度X射线散射 (SAXS).
- 显微镜方法,如传输电子显微镜 (TEM) 和原子力显微镜 (AFM).
- 分子建模模拟. 分子建模模拟.
主要成果:
- 在BINOL和OPE单元之间的三重H结合识别驱动自组装.
- 不同纳米结构的形成 (球形,棒形,纤维,螺旋) 取决于溶剂的恐溶性.
- 螺旋式纳米结构是唯一表现出微观性的人.
- 萨克斯和建模揭示了由超绕的二维双线缆带组成的螺旋式超结构.
结论:
- 结合,溶剂蒸汽压力和溶恐惧/溶性相互作用的相互作用决定了纳米结构的形成.
- 奇拉性在微观层面表达在特定的螺旋式超结构中.
- 这项研究提供了关于设计和控制性超分子组件的见解.
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