期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 35, 页码 10345-10349出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201605354
关键词
carbon nanotubes; CD spectroscopy; chirality; self-assembly; pi-gelators
资金
- CSIR, Government of India
- DST-SERB, Government of India
In an attempt to gather experimental evidence for the influence of carbon allotropes on supramolecular chirality, we found that carbon nanotubes (CNTs) facilitate amplification of the molecular chirality of a p-gelator (MC-OPV) to supramolecular helicity at a concentration much lower than that required for intermolecular interaction. For example, at a concentration 1.8 x 10(-4) M, MC-OPV did not exhibit a CD signal; however, the addition of 0-0.6 mg of SWNTs resulted in amplified chirality as evident from the CD spectrum. Surprisingly, AFM analysis revealed the formation of thick helical fibers with a width of more than 100 nm. High-resolution TEM analysis and solid-state UV/Vis/NIR spectroscopy revealed that the thick helical fibers were cylindrical cables composed of individually wrapped and coaxially aligned SWNTs. Such an impressive effect of CNTs on supramolecular chirality and cylindrical-cable formation has not been reported previously.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据