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Issue 12, 2020
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Sign inversions of circularly polarized luminescence for helical compounds by chemically fine-tuning operations

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Abstract

Sign inversions of circularly polarized luminescence (CPL) for the hydro[5]helicene and [5]helicene derivatives were discovered and studied experimentally and theoretically. The inverted CPL signs from the hydro[5]helicene to [5]helicene derivatives were realized by one-step oxidation. The introduction of triphenylamine (TPA) subunits into the helical skeletons also led to the sign inversion of CPL only when there existed an enhanced intramolecular charge-transfer state with a small enough Egap.

Graphical abstract: Sign inversions of circularly polarized luminescence for helical compounds by chemically fine-tuning operations

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Article information


Submitted
03 Nov 2019
Accepted
08 Jan 2020
First published
09 Jan 2020

Chem. Commun., 2020,56, 1863-1866
Article type
Communication

Sign inversions of circularly polarized luminescence for helical compounds by chemically fine-tuning operations

W. Lin, D. He, H. Lu, Z. Hu and C. Chen, Chem. Commun., 2020, 56, 1863
DOI: 10.1039/C9CC08573D

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