Journal
CHEMISTRYSELECT
Volume 8, Issue 47, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.202302321
Keywords
HABA; Europium; quinoline; photoluminescence; Terbium
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New lanthanide-based luminescent coordination compounds were synthesized, containing quinoline derivatives and 2-(4-hydroxyazobenzene)benzoic acid (HABA). Structural elucidation was carried out using various methods, and photoluminescence spectroscopy in the solid state was performed. The energy transfer to the metal ions through the pi-conjugated system was observed for Eu3+ and Tb3+ compounds. Europium complexes emitted red light and Terbium complexes emitted green light.
New lanthanide-based luminescent coordination compounds containing quinoline derivatives and 2-(4-hydroxyazobenzene)benzoic acid (HABA) were synthesized. Fourier transform infrared spectroscopy (FTIR), UV-Vis spectra, Elemental analyses, Energy dispersive X-ray fluorescence (EDXRF), and mass spectrometry (MALDI) were applied for six complexes ' structural elucidation. In addition, photoluminescence spectroscopy was performed in the solid state. Eu3+ and Tb3+ compounds linked to the pi-conjugated system described energy transfer to the metal through the antenna effect. Emission spectra depicted bands at 616-617 nm, characteristics of red light for Europium complexes, assigned as hypersensitive D-5(0)-> F-7(2) transition, and depicted bands at 540-542 nm (green light) for Terbium complexes, assigned as D-5(4)-> F-7(5) transition.
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