- 作者: 閻冰、謝啟友
- 作者服務機構: Department of Chemistry, Tongji University, Shanghai 200092, P. R. China
- 中文摘要: In this paper, according to the molecular fragment principle, a series of eight ternary luminescent lanthanide complex systems were assembled, and whose compositions were determined with elemental analysis and infrared spectrum: Ln(MA)3(L)×H2O, where Ln = Sm, Eu, Tb, Dy; HMA = a-methylacrylic acid; L = 1,10-phenanthroline (phen), 2,2¢-bipyridine (bipy). The photophysical properties of these functional molecular systems were studied with ultraviolet-visible absorption spectrum, and fluorescence excitation and emission spectrum. It was found that the heterocylic compounds (phen and bipy) act as the main energy donor and luminescence sensitizer for their suitable energy match and effective energy transfer to the emission energy level of Ln3+ ions. MMA ligand was only used as the terminal structural ligand to influence the luminescence. Especially terbium complex systems show the strongest luminescence for the optimum energy match and transfer between phen (bipy) and Tb3+ ion.
- 英文摘要: --
- 中文關鍵字: Molecular assembly; Ternary lanthanide complex systems; Photophysical properties.
- 英文關鍵字: --