Synthesis and photoluminescence properties of 8-hydroxyquinoline derivatives and their metallic complexes

OUYANG Xinhua, ZENG Heping, XIE Yan

PDF(381 KB)
PDF(381 KB)
Front. Chem. China ›› 2007, Vol. 2 ›› Issue (4) : 407-413. DOI: 10.1007/s11458-007-0077-6

Synthesis and photoluminescence properties of 8-hydroxyquinoline derivatives and their metallic complexes

  • OUYANG Xinhua, ZENG Heping, XIE Yan
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Abstract

Three new 8-hydroxyquinoline derivatives, i.e. 5-[(4-styryl-benzylidene)-amino]-quinolin-8-ol (1), 5-[(4-bromo-2-fluoro-benzylidene)-amino]-quinoline-8-ol (2) and 2-[2-(9-ethyl-9H-carbazol-2yl)-vinyl]-quinolin-8-ol (3), and their metallic complexes were synthesized and identified by ultraviolet-visible (UV-Vis), 1H nuclear magnetic resonance (1H NMR), Fourier transform infrared spectrometer (FTIR), mass spectrometry (MS) spectra and elemental analyses. Their fluorescence properties were studied by photoluminescence, which indicated that the luminescence wavelength of 5- and 2-substitued-8-hydroxyquinoline derivatives shifted to red in comparison with that of 8-hydroxyquinoline. Meanwhile, the fluorescence lifetime of 2-[2-(9-ethyl-9H-carbazol-2yl)-vinyl]-quinolin-8-ol and its zinc complex showed long lifetime in benzene solution.

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OUYANG Xinhua, ZENG Heping, XIE Yan. Synthesis and photoluminescence properties of 8-hydroxyquinoline derivatives and their metallic complexes. Front. Chem. China, 2007, 2(4): 407‒413 https://doi.org/10.1007/s11458-007-0077-6
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