Synthesis, characterization, and photophysical properties of novel 9‑phenyl-9-phosphafluorene oxide derivatives
Year: 2024
Type: article
Abstract: A novel series of D−A−D-type 9-phenyl-9-phosphafluorene oxide (PhFlOP) derivatives was prepared and is reported herein. The synthetic protocol involved 5 steps from commercially available 2-bromo-4-fluoro-1-nitrobenzene, featuring a noble-metal-free system, mild reaction conditions, and a good yield, especially for the final Cs 2 CO 3 -facilitated nucleophilic substitution (77–91% yield). The characterization data obtained from IR and NMR spectroscopy ( 1 H, 13 C, 19 F, and 31 P) as well as HRMS spectrometry were in full agreement with the expected structures, and single-crystal X-ray diffraction analysis was conducted to confirm the structure of compound 7-H . Moreover, the photophysical properties of these PhFlOP derivatives were determined by UV–vis absorption and photoluminescence studies, revealing that their photophysical behavior can be affected by the different substituents in the donor carbazole group.
DOI: 10.3762/bjoc.20.274
Authors: Shuxian Qiu, Duan Dong, Jiahui Li, Huiting Wen, Jinpeng Li, Yu Yang, Shengxian Zhai, Xingyuan Gao
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4405886431