期刊
NEW JOURNAL OF CHEMISTRY
卷 46, 期 23, 页码 11382-11388出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2nj01920e
关键词
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资金
- National Natural Science Foundation of China [22001126, 22103038]
- Jiangsu Provincial Innovation and Entrepreneurship Doctor Program [JSSCBS20210273]
Two carborane-containing tetraphenylethylene derivatives were synthesized and their structure-activity relationships were studied. The compounds exhibited aggregation-induced emission effect and their solid-state fluorescence quantum yields and emission colors could be tuned by changing the substituents. Quantum calculations were performed to study the excited electronic structures.
Two new carborane-containing tetraphenylethylene derivatives (1 and 2) were designed and synthesized. Together with our previously published compounds (3-5), we studied structure-activity relationships in detail. The results showed that compounds 1 and 2 exhibited the aggregation-induced emission effect. By changing the 2-R substituents (-H, -CH3, -C6H5, 5F, and CF3) of carborane, absolute solid-state fluorescence quantum yields ranging from 18% to 91% were obtained. The emission colors demonstrated a clear shift from blue to red with a maximum red shift of 239 nm. Quantum calculations were performed in accordance with density functional theory (DFT) and time-dependent DFT to study the excited electronic structures of compounds.
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