STM imaging of rationally designed helical polymers with a pattern of pi–pi stacking of the helical structures revealed single- and double-helical superstructures (see picture), including the smallest helical architecture observed to date, with a diameter of approximately 1.3 nm. The interconversion of single and double helices was further underpinned by experimental analyses.

本研究论文报道了一类新型芳香螺旋结构，首次展现了单双螺旋聚合物分子水平STM照片。此螺旋体系在超分子科学领域将有广泛应用前景。感谢哈工大雷圣宾教授研究组对本研究工作的辛勤付出！感谢超分子结构与材料国家重点实验室、基金委（21274051等）对本工作的资助。

 Please see the paper in Angew. Chem., 2015, DOI: 10.1002/anie.201410975

http://onlinelibrary.wiley.com/doi/10.1002/anie.201410975/abstract