کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1315858 1499437 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and luminescence properties of salicylaldehyde isonicotinoyl hydrazone derivatives and their europium complexes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis and luminescence properties of salicylaldehyde isonicotinoyl hydrazone derivatives and their europium complexes
چکیده انگلیسی


• Four novel europium complexes have been prepared and characterized.
• All the europium complexes exhibited characteristic emissions of europium ion.
• The luminescence intensity of the synthesized target complexes has been discussed.
• The europium complexes possessed relatively good fluorescence quantum yields.
• The electrochemical properties of the target complexes have been estimated.

Four novel salicylaldehyde isonicotinoyl hydrazone derivatives and their corresponding europium ion complexes were synthesized and characterized, while the luminescence properties and the fluorescence quantum yields of the target complexes were investigated. The results indicated that the ligands favored energy transfers to the emitting energy level of europium ion, and four target europium complexes showed the characteristic luminescence of central europium ion. Besides the luminescence intensity of the complex with methoxy group, which possessed the highest fluorescence quantum yield (0.522), was stronger than that of other complexes. Furthermore, the electrochemical properties of the target complexes were further investigated by cyclic voltammetry, the results indicated that the highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO) energy levels and the oxidation potential of the complexes with electron donating group increased, however, that of the complexes with accepting electron group decreased.

Four novel salicylaldehyde isonicotinoyl hydrazone derivatives and their corresponding europium complexes were synthesized and characterized. The results indicated that all the complexes exhibited characteristic emissions of europium ion. The relationship between the structure of ligands and luminescence intensity of the europium complexes has been discussed.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Inorganic Biochemistry - Volume 150, September 2015, Pages 100–107
نویسندگان
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