A new 8-hydroxyquinoline derivative （5） was synthesized and characterized by ESI-MS, ^1H NMR spectroscopy, elemental analysis and IR spectroscopy. The photophysical properties of compounds 5, 6 and 7 were also detem...A new 8-hydroxyquinoline derivative （5） was synthesized and characterized by ESI-MS, ^1H NMR spectroscopy, elemental analysis and IR spectroscopy. The photophysical properties of compounds 5, 6 and 7 were also detemined by UV-vis and FL spectroscopy. The vibrational frequency of ligand 5 predicted by using B3LYP method is in good agreement with experimentally determined values. The compositions of the corresponding copper（Ⅱ） and zinc（Ⅱ） complexes were confirmed to be Cu（C29H21N2·O）2,H2O （6） and Zn（C29H21N2O）2,H2O （7） by elementary analysis, thermogravimetry analysis and IR spectroscopy.展开更多
A series of 8-hydroxyquinoline azo derivatives with diverse conjugated structures were synthesized and studied to chromogenicaUy detect anions. All the dyes allowed selective detection for fluoride anion in CH3CN via ...A series of 8-hydroxyquinoline azo derivatives with diverse conjugated structures were synthesized and studied to chromogenicaUy detect anions. All the dyes allowed selective detection for fluoride anion in CH3CN via instant deprotonation of the compounds, which was affirmed by UV-Vis absorption and 1H NMR spectra. The chromogenically responding ability increases as the substituent changes from phenyl to naphthyl or anthryl. This result is likely to be related to the enhancement of intramolecular charge transfer （ICT） induced by extension of conjugated structure.展开更多
基金Project supported by the National Natural Science Foundation of China （Nos. 20231020 and 20471020） and the Natural Science Foundation of Guangdong Province （No. 36585）.
文摘A new 8-hydroxyquinoline derivative （5） was synthesized and characterized by ESI-MS, ^1H NMR spectroscopy, elemental analysis and IR spectroscopy. The photophysical properties of compounds 5, 6 and 7 were also detemined by UV-vis and FL spectroscopy. The vibrational frequency of ligand 5 predicted by using B3LYP method is in good agreement with experimentally determined values. The compositions of the corresponding copper（Ⅱ） and zinc（Ⅱ） complexes were confirmed to be Cu（C29H21N2·O）2,H2O （6） and Zn（C29H21N2O）2,H2O （7） by elementary analysis, thermogravimetry analysis and IR spectroscopy.
基金Project supported by the National Science Foundation of China （Nos. 20490210, 20501006） and the Shanghai Science Technology Foundation （No. 05DJ 14004）.
文摘A series of 8-hydroxyquinoline azo derivatives with diverse conjugated structures were synthesized and studied to chromogenicaUy detect anions. All the dyes allowed selective detection for fluoride anion in CH3CN via instant deprotonation of the compounds, which was affirmed by UV-Vis absorption and 1H NMR spectra. The chromogenically responding ability increases as the substituent changes from phenyl to naphthyl or anthryl. This result is likely to be related to the enhancement of intramolecular charge transfer （ICT） induced by extension of conjugated structure.
