Facile construction of Zn(II)-porphyrin-cored [5]rotaxane and its controllable aggregation behaviours |
| |
Authors: | Menglan He Lijun Chen Bo Jiang Hongwei Tan Cuihong Wang Haibo Yang |
| |
Institution: | a Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China;
b Department of Chemistry, Beijing Normal University, Beijing 100050, China |
| |
Abstract: | Rotaxanes have attracted more and more attentions because of their diverse applications as sensors, catalysts, and functional materials. The construction of highly ordered and discrete multirotaxanes with the well-defined structure remains a challenge. Herein, a symmetric 5]rotaxane with zinc porphyrin as core and the neutral platinum-acetylide as the linkage was synthesized with high yield. The 5]rotaxane was well characterized with NMR spectroscopy and MALDI-TOF mass spectrometry. Interestingly, it was found that the 5]rotaxane showed the controllable aggregation behaviours in different solution compositions. For example, in non-polar solution, the 5]rotaxane could self-assemble into the large-scaled solid nanospheres while the nanofibers were formed in polar solvent. Further investigation revealed that the 5]rotaxane displayed J-type aggregation in solution driven by π-π interaction. Notably, the similar structure without DPP5]A formed the irregular morphology at the same condition, suggesting that the existence of rotaxanes endowed the complex with a relative rigid structure to facilitate the formation of the ordered aggregates. |
| |
Keywords: | [5]rotaxane Neutral platinum Ordered nanostructures Morphology aggregation |
本文献已被 ScienceDirect 等数据库收录! |
| 点击此处可从《中国化学快报》浏览原始摘要信息 |
| 点击此处可从《中国化学快报》下载免费的PDF全文 |
|