Synthesis and photophysical properties of aluminium tris-(4-morpholine-8-hydroxyquinoline)
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چکیده
منابع مشابه
Synthesis and photophysical properties of aluminium tris-(4-morpholine-8-hydroxyquinoline)
Aluminium tris(4-morpholinyl-8-hydroxyquinoline) has been synthesized and characterized. The photoluminescence measurements showed that the new derivative is blue shifted and has relative photoluminescence quantum yield two times higher compared to the pristine Al tris(8-hydroxyquinoline). Deferential scanning colorimetric studies revealed that the newly synthesized Alq3 derivative in this work...
متن کاملSynthesis and characterization of hemicage 8-hydroxyquinoline chelates with enhanced electrochemical and photophysical properties.
A new hexadentate, tripodal 8-hydroxyquinoline ligand (QH3) and its trivalent metal chelates (MQ, M=Al3+, Ga3+, In3+) with hemicage structures have been prepared and the electrochemical and photophysical properties systematically studied. The hemicage structure of the metal complexes was characterized by 1H NMR, indicating a pure facial geometry, in contrast to their uncaged cousins with 8-hydr...
متن کاملCharacterization of the triplet state of tris(8-hydroxyquinoline)aluminium(III) in benzene solution.
The lowest triplet state of tris(8-hydroxyquinoline)aluminium(III) (Alq3) has been prepared by pulse radiolysis/energy transfer from appropriate donors in benzene solutions and has an absorption maximum around 510 nm with a lifetime of about 50 mus. It is quenched by molecular oxygen, leading to singlet oxygen formation. From flash photolysis and singlet oxygen formation measurements, a quantum...
متن کاملFormation and Entrapment of Tris(8-hydroxyquinoline)aluminum from 8-Hydroxyquinoline in Anodic Porous Alumina
The formation and entrapment of tris(8-hydroxyquinoline)aluminum (Alq₃) molecules on the surface of anodic porous alumina (APA) immersed in an ethanol solution of 8-hydroxyquinoline (HQ) were investigated by absorption, fluorescence, and Raman spectroscopies. The effects of the selected APA preparation conditions (galvanostatic or potentiostatic anodization method, anodizing current and voltage...
متن کاملStructural and photophysical properties of trianionic nine-coordinated near-IR emitting 8-hydroxyquinoline-based complexes.
Two building blocks, 2-(1H-tetrazol-5-yl)quinoline-8-ol (8-hydroxyquinoline-2-tetrazole) (H(2)hqt) and 8-hydroxyquinoline-2-carboxylic acid (H(2)hqa) provide convenient dianionic tridentate O,N,N- and O,N,O-chelating units containing the 8-hydroxyquinoline chromophore. These ligands form tris-chelate tris-anionic complexes [Ln(hqa)(3)]K(3) and [Ln(hqt)(3)]K(3) in water at pH = 12. At lower pH p...
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ژورنال
عنوان ژورنال: Journal of Advanced Research
سال: 2013
ISSN: 2090-1232
DOI: 10.1016/j.jare.2012.09.003