期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 23, 期 46, 页码 11141-11146出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201702391
关键词
chirality; gels; helical structures; self-assembly; supramolecular polymers
资金
- MINECO/FEDER of Spain [CTQ2014-53046-P, CTQ2015-69391-P]
- Comunidad de Madrid (NanoBIOSOMA) [S2013/MIT-2807]
- MECD of Spain
The chiroptical features of supramolecular polymers formed from N-heterotriangulenes 1-3 have been investigated by circular dichroism (ECD) and vibrational circular dichroism (VCD) techniques. In solution, the CD spectra demonstrate that the helicity of the aggregates depends on only the stereogenic centres located at the peripheral chains. In the gel state, the chiroptical features are conditioned by the point chirality of the stereogenic centres and by the achiral solvent utilised. Sonication of the gels formed in CCl4 reveals both kinetic and thermodynamic phases. These findings reveal the presence of pathway complexity in the gel state triggered by sonication. The described solvent-induced helical stereomutation demonstrates that the gel state can be utilised as an outstanding benchmark for investigating uncommon chiroptical effects and to explore the rules of chirality transmission.
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