Unexpected aggregation induced circular dichroism, circular polarized luminescence and helical assembly from achiral hexaphenylsilole (HPS)
| Autor: | Luming Meng, Jacky Wing Yip Lam, Zhiyong Tang, Lin Shi, Shan Xue, Ben Zhong Tang, Rongsen Wen, Bing Shi Li |
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| Rok vydání: | 2017 |
| Předmět: |
Circular dichroism
General Chemical Engineering 02 engineering and technology General Chemistry Conjugated system 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Fluorescence 0104 chemical sciences Crystallography symbols.namesake chemistry.chemical_compound Monomer chemistry Nanofiber symbols Molecule van der Waals force 0210 nano-technology Luminescence |
| Zdroj: | RSC Advances. 7:24841-24847 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c7ra02495a |
| Popis: | This work provides the finding of aggregation-induced circular dichroism (AICD), optical properties and helical assemblies of π–π conjugated molecule hexaphenylsilole (HPS). As an achiral molecule, HPS was found to exhibit unusual AICD and circular polarized luminescence (CPL). Upon aggregation, it self-assembled into fluorescent helical nanofiber and nanotubes. Theoretical modeling suggests that van der Waals interaction between HPS monomers plays an essential role in the formation of helical nanofibers. These kinds of molecules have important applications given the increasing demand of miniaturized optics and electronic devices. |
| Databáze: | OpenAIRE |
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