School of Chemistry and Chemical Engineering, State Key Lab of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, China.
J Org Chem. 2012 Oct 19;77(20):9413-7. doi: 10.1021/jo301779y. Epub 2012 Oct 4.
Two novel copillar[5]arenes bearing ω-hydroxyalkoxy groups are synthesized and their self-assembly properties are studied by (1)H NMR spectroscopy, specific viscosity, and X-ray measurements. The copillar[5]arene 2b bearing a 6-hydroxyhexyloxy group exhibits a reversible self-assembly behavior, leading to the formation of the self-inclusion monomer and hugging dimers. The reversible self-assembly behavior can be controlled by tuning solvent, temperature, guest, and H-bond interaction. However, the copillar[5]arene 2a bearing a short 4-hydroxybutyloxy group does not show such a self-assembly behavior to the formation of the self-inclusion monomer and hugging dimers.
两种新型带有ω-羟基烷氧基的共轮芳烃被合成，并通过（1）H NMR 光谱、比浓黏度和 X 射线测量研究其自组装性质。带有 6-羟基己氧基的共轮芳烃 2b 表现出可逆的自组装行为，导致自包容单体和拥抱二聚体的形成。通过调节溶剂、温度、客体和氢键相互作用，可以控制这种可逆的自组装行为。然而，带有较短的 4-羟基丁氧基的共轮芳烃 2a 则没有表现出形成自包容单体和拥抱二聚体的自组装行为。
