Self-assembled nanostructures of linear arylacetylenes and their aza-substituted analogues
Jia-Ju Xu,
Xiong-Bo Yang,
Hua Feng,
Yu-Long Wang,
Hai-Quan Shan,
Zong-Xiang Xu,
Chi-On Ng,
Long-Biao Huang,
Chi-Chiu Ko,
V. A. L. Roy
Affiliations
Jia-Ju Xu
Department of Chemistry, South University of Science and Technology of China, Shenzhen, P. R. China, 518055
Xiong-Bo Yang
Department of Physics and Materials Science and Centre of Super Diamond and Advanced Films (COSDAF), City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
Hua Feng
Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
Yu-Long Wang
Department of Chemistry, South University of Science and Technology of China, Shenzhen, P. R. China, 518055
Hai-Quan Shan
Department of Chemistry, South University of Science and Technology of China, Shenzhen, P. R. China, 518055
Zong-Xiang Xu
Department of Chemistry, South University of Science and Technology of China, Shenzhen, P. R. China, 518055
Chi-On Ng
Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
Long-Biao Huang
Department of Physics and Materials Science and Centre of Super Diamond and Advanced Films (COSDAF), City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
Chi-Chiu Ko
Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
V. A. L. Roy
Department of Physics and Materials Science and Centre of Super Diamond and Advanced Films (COSDAF), City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
A series of linear phenylene ethynylene molecules have been synthesized, and aza-substitution has been used as a strategy to fine-tune the properties of the molecules. All the compounds exhibited pure blue emission both in solution and solid state, and fluorescence quantum yields as high as 0.66, 0.63 and 0.82 were found in chloroform solutions. The well-defined nanostructures such as quasi-cubes, cubes and rods were fabricated by self-assembly method from these compounds. The photophysical properties and aggregation behavior of self-assembled structures were analyzed in detail. The morphology as well as photophysical properties of these nanostructures have been tuned with selective requirements.
