Synthesis, characterization and electronic effects investigations of new 5,7-disubstituted tris(8-quinolinolate)Al(III) complexes

Eight 5,7-diaryl-8-hydroxyquinoline ligands were synthesized and characterized by 1H, 13C NMR spectroscopy and mass spectrometry. The electron-donating and electron-withdrawing aryl groups were attached to the 5- and 7-positions of the quinolinolate ring via Suzuki coupling reaction. The aluminum co...

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Published inDyes and pigments Vol. 103; pp. 138 - 144
Main Authors Al-Busafi, Saleh N., Suliman, FakhrEldin O., Al-Alawi, Zaid R.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.04.2014
Subjects
8-Hydroxyquinoline
Aluminum ion
Color
Electronics
Fluorescence sensors
Ligands
NMR spectroscopy
OLEDs
Photophysical properties
Rings (mathematics)
Segments
Suzuki coupling reaction
Tuning
Visible spectrum
8-Hydroxyquinoline
Suzuki coupling reaction
Aluminum ion
OLEDs
Photophysical properties
Fluorescence sensors
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Summary:Eight 5,7-diaryl-8-hydroxyquinoline ligands were synthesized and characterized by 1H, 13C NMR spectroscopy and mass spectrometry. The electron-donating and electron-withdrawing aryl groups were attached to the 5- and 7-positions of the quinolinolate ring via Suzuki coupling reaction. The aluminum complexes of these ligands exhibited successful tuning in the emission color, covering a large segment of the visible spectrum. [Display omitted] •A series of 5,7-disubstituted tris(8-quinolinolate) Al(III) complexes containing EW/ED groups were prepared.•The emission color of the new complexes influenced by the electronic environment of the aryl substituents.•Measurements of AlQ3 complexes demonstrate clearly the possibility of tuning their emission color.
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ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2013.12.007