超分子化学
动力控制
亚稳态
化学
自组装
聚合
纳米技术
纳米结构
单体
能源景观
超分子聚合物
卟啉
产量(工程)
化学物理
超分子组装
动能
聚合物
结晶学
材料科学
热力学
物理
晶体结构
光化学
催化作用
有机化学
生物化学
量子力学
作者
Tomoya Fukui,Shinnosuke Kawai,Satoko Fujinuma,Yoshitaka Matsushita,Takeshi Yasuda,Tsuneaki Sakurai,Shu Seki,Masayuki Takeuchi,Kazunori Sugiyasu
出处
期刊:Nature Chemistry
[Springer Nature]
日期:2016-12-19
卷期号:9 (5): 493-499
被引量:370
摘要
Molecular self-assembly under kinetic control is expected to yield nanostructures that are inaccessible through the spontaneous thermodynamic process. Moreover, time-dependent evolution, which is reminiscent of biomolecular systems, may occur under such out-of-equilibrium conditions, allowing the synthesis of supramolecular assemblies with enhanced complexities. Here we report on the capacity of a metastable porphyrin supramolecular assembly to differentiate into nanofibre and nanosheet structures. Mechanistic studies of the relationship between the molecular design and pathway complexity in the self-assembly unveiled the energy landscape that governs the unique kinetic behaviour. Based on this understanding, we could control the differentiation phenomena and achieve both one- and two-dimensional living supramolecular polymerization using an identical monomer. Furthermore, we found that the obtained nanostructures are electronically distinct, which illustrates the pathway-dependent material properties.
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