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DONGCAI GUO1,* , WEI HE1, XIAOQING YU1, HUI TAN1, LIYING WANG1
Three new N-carbazole acetyl hydrazones Schiff-bases were synthesized by the condensation reaction between N-carbazolyl acetyl hydrazine and the substituted benzaldehydes in anhydrous ethanol, and characterized by elemental analysis, Fourier transform-infrared (FT-IR), 1H-NMR and mass spectral analysis. The relationships between the substituent type and the UV, fluorescence spectral properties as well as the fluorescence quantum yields of the title Schiff-bases were also investigated. The results indicate that the fluorescence quantum yields of the title Schiff-bases with accepting electron groups are decreased, while that of the title Schiff-bases with donating electron group are increased. The fluorescence quantum yield of the 2-(9H-carbazol-9-yl)-N'-(2-hydroxybenzylidene) acetohydrazide is up to 0.631..
Schiff-base, Synthesis, Carbazole, Fluorescence quantum yield.
DONGCAI GUO, WEI HE, XIAOQING YU, HUI TAN, LIYING WANG, Synthesis and luminescence properties of N-carbazole acetyl hydrazones Schiff-bases, Optoelectronics and Advanced Materials - Rapid Communications, 6, 9-10, September-October 2012, pp.863-867 (2012).
Submitted at: May 16, 2012
Accepted at: Sept. 20, 2012
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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