期刊
NEW JOURNAL OF CHEMISTRY
卷 45, 期 20, 页码 8986-8992出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1nj01327k
关键词
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资金
- National Natural Science Foundation of China [21875152, 22071166]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [20KJA430009]
- Open Fund of the State Key Laboratory of Luminescent Materials and Devices, South China University of Technology [2020-skllmd-02]
- Open Fund of Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, Guangzhou, China (South China University of Technology) [2019B030301003]
- Project of Scientific and Technologic Infrastructure of Suzhou [SZS201905]
- Priority Academic Program Development of Jiangsu High Education Institutions (PAPD)
A pair of Phe-Phe dipeptides with a tolane group can self-assemble into straight belts with circularly polarized luminescence properties. They can be used as templates to prepare dipeptide-based hybrid silicas that form coiled nanoribbons. The silica covering enhances the CPL intensity and inverses its handedness.
A pair of Phe-Phe dipeptides with a tolane group were synthesized by introducing tolane with high emission efficiency to phenylalanine dipeptide. The sodium salts of the dipeptides were able to self-assemble into straight belts in a mixture of methanol and water. The supramolecular assemblies exhibited circularly polarized luminescence (CPL) properties. They can be used as templates to prepare dipeptide-based hybrid silicas through a supramolecular templating approach. The hybrid materials formed coiled nanoribbons, which showed a distinct and different morphology compared to supramolecular assemblies. Moreover, since silica covering can affect the packing structures of the tolane groups, the intensity of the CPL was enhanced and its handedness was inversed.
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