Image1_Stereoisomer-Independent Stable Blue Emission in Axial Chiral Difluorenol.tif
Bulky conjugated molecules with high stability are the prerequisite for the overall improvement of performance in wide-bandgap semiconductors. Herein, a chiral difluorenol, 2,2′-(9,9′-spirobi[fluorene]-2,2′-diyl)bis(9-(4-(octyloxy)phenyl)-9H-fluoren-9-ol) (DOHSBF), is set as a desirable model to reveal the stereoisomeric effects of wide-bandgap molecules toward controlling photophysical behavior and improving thermal and optical stability. Three diastereomers are obtained and elucidated by NMR spectra. Interestingly, the effect of modifying the stereo-centers is not observed on optical properties in solutions, pristine films, or post-treated film states. All three diastereomers as well as the mixture exhibit excellent spectral stability without undesirable green emission. Therefore, this stereoisomer-independent blue-emitting difluorenol will be a promising candidate for next-generation wide-bandgap semiconductors that would have extensive application in organic photonics.
History
References
- https://doi.org//10.1021/ma9808979
- https://doi.org//10.1039/CT9222100614
- https://doi.org//10.1039/C0CS00204F
- https://doi.org//10.1038/16393
- https://doi.org//10.1002/hlca.19690520505
- https://doi.org//10.1021/jacs.9b13019
- https://doi.org//10.1021/jacs.7b04611
- https://doi.org//10.1039/B914956M
- https://doi.org//10.1038/ncomms5666
- https://doi.org//10.1002/anie.201710330
- https://doi.org//10.1002/adma.201204296
- https://doi.org//10.1039/c5ee03481g
- https://doi.org//10.1002/smll.201703151
- https://doi.org//10.1021/acs.orglett.5b03038
- https://doi.org//10.1002/admi.201902057
- https://doi.org//10.1038/s41929-020-0494-1
- https://doi.org//10.1021/jacs.7b00363
- https://doi.org//10.1039/c2cc31468a
- https://doi.org//10.1021/cen-09633-feature1
- https://doi.org//10.1021/jacs.8b11790
- https://doi.org//10.1002/adfm.200305149
- https://doi.org//10.1146/annurev-physchem-040513-103639
- https://doi.org//10.1021/acs.accounts.7b00602
- https://doi.org//10.1039/C9OB00754G
- https://doi.org//10.1021/acs.biochem.0c00831
- https://doi.org//10.1016/j.progpolymsci.2012.02.003
- https://doi.org//10.1016/j.chempr.2019.06.021
- https://doi.org//10.1039/c7tc04817c
- https://doi.org//10.1021/acs.jpcc.9b07895
Usage metrics
Read the peer-reviewed publication
Categories
- Geochemistry
- Biochemistry
- Inorganic Chemistry
- Organic Chemistry
- Nuclear Chemistry
- Medical Biochemistry: Proteins and Peptides (incl. Medical Proteomics)
- Medical Biochemistry and Metabolomics not elsewhere classified
- Environmental Chemistry (incl. Atmospheric Chemistry)
- Analytical Biochemistry
- Cell Neurochemistry
- Electroanalytical Chemistry
- Enzymes
- Organic Green Chemistry
- Physical Organic Chemistry
- Catalysis and Mechanisms of Reactions
- Analytical Chemistry not elsewhere classified
- Food Chemistry and Molecular Gastronomy (excl. Wine)
- Environmental Chemistry