利用以CTV 為基礎之分子容器分離純化富勒烯萃取物

Abstract

在本研究中，我們合成出一以環三聚藜烴為基礎分子籠 1，發現在含有 C60 情形下傾向與 C70 在室溫下可被分離的活門囚籠錯合物 (hemicarceplex)，除了透過核磁共振光譜解析來研究其結合與解離的動力學行為與鍵結常數外，還利用這樣的選擇性應用在分離純化市售之富勒烯萃取物 (fullerene extract)。最後在不以高效率液相層析或再結晶的方式，而是透過超分子化學系統概念可以分離出相當高純度 C70 (≥99%)。

Herein we reported a cyclotriveratrylene-based molecular cage that favored the formation of a room temperature–isolable hemicarceplex with C70, in the presence of C60, has been developed. Significant differences in the association and dissociation kinetic properties of the molecular cage and buckyballs allowed the isolation of C70 in high purity (≥ 99.0%) from a commercial fullerene extract without the need for recrystallization or HPLC.