Dimerization Control in the Self-Assembly Behavior of Copillar[5]arenes Bearing 蠅-Hydroxyalkoxy Groups

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• 作者：Luzhi Liu ; Lingyun Wang ; Changchun Liu ; Zhiyong Fu ; Herbert Meier ; Derong Cao
• 刊名：The Journal of Organic Chemistry
• 出版年：2012
• 出版时间：October 19, 2012
• 年：2012
• 卷：77
• 期：20
• 页码：9413-9417
• 全文大小：301K
• 年卷期：v.77,no.20(October 19, 2012)
• ISSN：1520-6904

文摘

Two novel copillar[5]arenes bearing 蠅-hydroxyalkoxy groups are synthesized and their self-assembly properties are studied by ¹H 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.