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Construction of wavelength-tunable DSE quinoline salt derivatives by regulating the hybridization form of the nitrogen atom and intramolecular torsion angle
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作者 Kuan Deng Fei Yang +8 位作者 Zhi-Qi Cheng Bi-Wen Ren Hua Liu Jiao Chen Meng-Yao She Le Yu Xiao-Gang Liu Hai-Tao Feng Jian-Li Li 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第10期315-320,共6页
Dual-state emission(DSE)molecules displayed conspicuous fluorescent performance both in solid and solution states.However,the construction of DSE molecules and the regulation of their emission wavelengths remains a gr... Dual-state emission(DSE)molecules displayed conspicuous fluorescent performance both in solid and solution states.However,the construction of DSE molecules and the regulation of their emission wavelengths remains a great challenge.Based on the structure-function relationship of quinolinonitrile-type fluorophores,this work proposed a feasible strategy for modulating their fluorescent properties into DSE via limiting the torsion angle between the quinoline ring and C=C bond in the range of 4.7°to 30°.Based on this strategy,53 compounds were obtained which displayed tunable emission wavelengths from^(3)97 nm to 740 nm in solid-state and from 360 nm to 672 nm in solution.The feasibility of the strategy was supported by a series of theoretical calculations,optical characterizations,and crystal analysis,suggesting the compounds have great potential in imaging living cells and tissues with desired wavelengths. 展开更多
关键词 FLUORESCENCE Dual-state emission Structure-function relationship wavelength regulation Fluorescent imaging
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