作者:Tom W. Anderson、G. Dan Pantoş、Jeremy K. M. Sanders
DOI:10.1039/c1ob06147j
日期:——
Three new N-desymmetrised naphthalenediimides (NDIs) are described, each containing one chiral and one achiral centre. The ability of such ‘monochiral’ NDIs to self-assemble into hydrogen-bonded helical nanotubes, to act as a sergeant in a ‘sergeants-and-soldiers’ system and to form a hexameric receptor for C70 was examined. Small differences at the achiral centre were found to have significant effects on the supramolecular properties of the NDI. All three new NDIs form nanotubes that bind C60, but with different efficiencies, and one is a better sergeant than any of the dichiral NDIs investigated to date.
本文介绍了三种新型 N-非对称萘二亚胺(NDI),每种都含有一个手性中心和一个非手性中心。研究考察了这种 "单手性 "NDI 自组装成氢键螺旋纳米管、在 "军士-士兵 "系统中充当军士以及形成 C70 六聚体受体的能力。研究发现,非手性中心的微小差异对 NDI 的超分子特性有显著影响。所有三种新型 NDI 都能形成与 C60 结合的纳米管,但效率各不相同,其中一种 NDI 比迄今为止研究过的任何一种二手性 NDI 的军士效果都更好。