Abstract
Mono[6-deoxy-6-(pentacosa-10,12-diynyl amidomethyl)]-β-cyclodextrin was successfully synthesized by reacting mono-6-amino-6-deoxy-β-cyclodextrin with N-hydroxysuccinimide ester of 10,12-pentacosadiynoic acid in DMF. The modified β-cyclodextrin self-assembled and aggregated to form a worm-like supramolecular structure, and the novel supramolecular aggregates were studied using 2D nuclear magnetic resonance spectroscopy, X-ray powder diffraction, thermogravimetry, and electron microscopy. Interestingly, the synthesized pentacosa-10,12-diynyl amidomethyl-β-cyclodextrin formed columnar type self-aggregates and it was clearly differentiated from cage-like structure of native β-cyclodextrin.
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