Citation: Yiran Xia, Aiyou Hao, Pengyao Xing. Fmoc-protected amino acids as luminescent and circularly polarized luminescence materials based on charge transfer interaction[J]. Chinese Chemical Letters, ;2022, 33(11): 4918-4923. doi: 10.1016/j.cclet.2022.02.077 shu

Fmoc-protected amino acids as luminescent and circularly polarized luminescence materials based on charge transfer interaction

Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Ji'nan 250100, China

haoay@sdu.edu.cn

xingpengyao@sdu.edu.cn

Received Date: 26 December 2021
Revised Date: 21 February 2022
Accepted Date: 26 February 2022
Available Online: 3 March 2022

Figures(7)

Fluorenylmethyloxycarbonyl (Fmoc)-protected amino acids are effective building blocks in self-assembled architectures at hierarchical levels, which however show limited luminescent properties and chiroptical activities. Here we introduce a charge-transfer strategy to build two-component luminescent materials with emerged circularly polarized luminescence properties. A library of Fmoc-amino acids was built, which selectively form charge-transfer complexes with the electron-deficient acceptor. Embedding in amorphous polymer matrix or physical grinding could trigger the charge-transfer luminescence with adjusted wavelengths in a general manner. X-ray diffraction results suggest the multiple binding modes between donor and acceptor. And, the solution-processed coassembly could selectively exhibit circularly polarized luminescence with high dissymmetry g-factors. This work illustrates a noncovalent charge-transfer strategy to construct luminescent and chiroptical organic composites based on the easy-accessible and economic chiral N-terminal aromatic amino acids.
- Fmoc-amino acids,
- Charge-transfer interaction,
- Supramolecular chirality,
- Multiple component coassembly
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