Journal of Materials Chemistry C p. 11099 - 11110 (2015)
Update date:2022-07-30
Topics:
Cheng, Jinghui
Li, Yuanxi
Sun, Rui
Liu, Jiaoyan
Gou, Fei
Zhou, Xiangge
Xiang, Haifeng
Liu, Jin
A series of novel, simple, and colorful Salen ligands (56 samples), salicylaldehyde-based bis-Schiff bases, linking with different non-conjugated alkyl bridges ((CH2)n, n = 2-9, 12; cyclohexyl) and containing different electron-accepting (-NO2, -F, and -Cl), electron-donating (-OMe, -OH, and -NEt2), or sterically hindering (-t-butyl) substituents or a π-extended system (naphthalene ring) have been designed and synthesized. The photophysical properties of these Salen ligands can be well-tuned by the introduction of side functional substituents, π-extended systems, and central N-alkyl chain bridges. It is unusual that they contain a small π-conjugated system but display strong blue, green, and red aggregation-induced emission (AIE) with large Stokes shifts (up to 162 nm) and high fluorescence quantum yields (up to 0.44 and 0.75 in water and in solid, respectively). Combining with their advantages of AIE and good stability and biocompatibility, the Salen ligands can be potentially used in mechanofluorochromism (crystal-defect-induced emission) and living cell imaging. Moreover, the inherent relationships between their chemical structures and AIE properties are studied, which provide unequivocal insights for the design of AIE-active dyes.
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Doi:10.1021/ac035537k
(2004)Doi:10.1016/j.carres.2004.05.019
(2004)Doi:10.1016/j.tet.2004.06.027
(2004)Doi:10.1246/bcsj.44.1311
(1971)Doi:10.1021/jo01314a046
(1980)Doi:10.1016/j.bmc.2004.11.004
(2005)