25473-11-4Relevant academic research and scientific papers
Photosensitized luminescence of highly thermostable mononuclear Eu(III) complexes with π-expanded β-diketonate ligands
Koizuka, Toru,Yamamoto, Masanori,Kitagawa, Yuichi,Nakanishi, Takayuki,Fushimi, Koji,Hasegawa, Yasuchika
, p. 1287 - 1292 (2017)
Thermostable mononuclear Eu(III) complexes with a π- expanded system, [Eu(btfa)3(DPEPO)] and [Eu(ntfa)3(DPEPO)] (DPEPO: bis[2-(diphenylphosphino)phenyl] ether oxide, btfa: benzoyltrifluoroacetonate, ntfa: 3-(2-naphthoyl)-1,1,1-trifluoroacetonate), are reported. Decomposition temperature (dp) of [Eu(btfa)3(DPEPO)] and that of [Eu(ntfa)3(DPEPO)] are estimated to be 320 °C and 318 °C, respectively. These values are higher than that of the previous [Eu(hfa)3(DPEPO)] (hfa: hexafluoroacetylacetonate, dp = 228 °C). The photosensitized emission quantum yield Φππ? and photosensitized energy transfer efficiency ηsens of [Eu(ntfa)3(DPEPO)] (Φππ? = 45%, ηsens = 77%) are larger than those of [Eu(btfa)3(DPEPO)] (Φππ? = 38%, ηsens = 55%). The thermostable Eu(III) complex with a π-expanded system is expected to be useful for fabrication of LED devices.
Luminescent PMMA Films and PMMA@SiO2 Nanoparticles with Embedded Ln3+ Complexes for Highly Sensitive Optical Thermometers in the Physiological Temperature Range**
Mara, Dimitrije,Kaczmarek, Anna M.,Artizzu, Flavia,Abalymov, Anatolii,Skirtach, Andre G.,Van Hecke, Kristof,Van Deun, Rik
supporting information, p. 6479 - 6488 (2021/03/18)
In recent years, luminescent materials doped with Ln3+ ions have attracted much attention for their application as optical thermometers based on both downshifting and upconversion processes. This study presents research done on the development
Adducts of europium β-diketonates with nitrogen p,p′-disubstituted bipyridine and phenanthroline ligands: Synthesis, structural characterization, and luminescence studies
De Silva, Channa R.,Maeyer, Jenine R.,Wang, Ruiyao,Nichol, Gary S.,Zheng, Zhiping
, p. 3543 - 3552 (2008/10/09)
Europium complexes featuring fluorinated β-diketonate ligands [thenoyltrifluoroacetone (tta), 4,4,4-trifluoro-1-phenyl-1,3-butanedione (btfac), and 1,1,1,5,5,5-hexafluoro-2,4-pentanedionate (hfac)] and nitrogen p,p′-disubstituted bipyridine and phenanthro
Europium(III) mixed complexes with β-diketones and o-phenanthroline-N-oxide as promising light-conversion molecular devices
De Mello Donega, Celso,Junior, Severino A.,De Sa, Gilberto F.
, p. 1199 - 1200 (2007/10/03)
The new complex tris(4,4,4-trifluoro-1-phenyl-1,3-butanedionate)(1,10-phenanthroline-N-oxide)- europium(III) shows a remarkable luminescence quantum yield at room temperature (66%) upon ligand excitation and a long 5D0 lifetime (670 μs), which makes it a promising light-conversion molecular device.
