Synthesis and photophysical properties of donor-substituted phenyl-phosphachromones as potential TADF materials
Literature Information
Publication Date
2021-02-05
DOI
10.1039/D1QO00121C
Impact Factor
5.281
Authors
Shuangshuang Xu, Haiyang Huang, Chengxiong Yuan, Fen Liu, Haixin Ding, Qiang Xiao
View Original
Abstract
A series of novel arylamine-substituted phenyl-phosphachromones were constructed via post-functionalization. As a new type of D–π–A functional molecule, their photophysical properties can be well tuned by different amino substituents at different positions with variable Stokes shifts (Δλ = 127–299 nm). Moreover, compounds 4a, 4b, 4f, 4m, and 4n exhibit an unusual dual emission with a large wavelength difference. Strong intermolecular interactions were also observed for these compounds, and therein, a sandwich π(donor)–π(donor) stacking interaction was found in the solid-state structure of 4e. Moreover, (TD-)DFT computations were performed to rationalize the observed electronic properties and intramolecular interactions. Finally, the delayed fluorescence of these D–π–A molecules in the film was observed and further confirmed to be a result of thermally activated delayed fluorescence and mixed room-temperature phosphorescence.
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Source Journal
Organic Chemistry Frontiers
CiteScore:
7.8
Self-citation Rate:
8.7%
Articles per Year:
724
Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry
Recommended Compounds
5,7-Dihydroxy-2-(4-hydroxyphenyl)-4-oxo-4H-chromen-3-yl 2-O-(6-deoxy-alpha-L-mannopyranosyl)-beta-D-glucopyranoside
CAS Number:
32602-81-6
Molecular Formula:
C27H30O15
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