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Synthesis of Highly Luminescent Chiral Nanographene.
- Source :
-
Angewandte Chemie . 1/23/2023, Vol. 135 Issue 4, p1-5. 5p. - Publication Year :
- 2023
-
Abstract
- Chiral nanographenes with both high fluorescence quantum yields (ΦF) and large dissymmetry factors (glum) are essential to the development of circularly polarized luminescence (CPL) materials. However, most studies have been focused on the improvement of glum, whereas how to design highly emissive chiral nanographenes is still unclear. In this work, we propose a new design strategy to achieve chiral nanographenes with high ΦF by helical π‐extension of strongly luminescent chromophores while maintaining the frontier molecular orbital (FMO) distribution pattern. Chiral nanographene with perylene as the core and two dibenzo[6]helicene fragments as the wings has been synthesized, which exhibits a record high ΦF of 93 % among the reported chiral nanographenes and excellent CPL brightness (BCPL) of 32 M−1 cm−1. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FLUORESCENCE yield
*FRONTIER orbitals
*LUMINESCENCE
*FLUOROPHORES
Subjects
Details
- Language :
- English
- ISSN :
- 00448249
- Volume :
- 135
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Angewandte Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 161338007
- Full Text :
- https://doi.org/10.1002/ange.202215367