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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, Advance Article
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, Advance Article , DOI: 10.1039/C9CC08573D

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