期刊
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
卷 12, 期 2, 页码 330-338出版社
SPRINGERNATURE
DOI: 10.1039/c2pp25284h
关键词
-
资金
- Guangdong-Hongkong Technology Cooperation Finding [2009A091300012]
- Natural Science Foundation of Guangdong Province of China [8251065004000001, E06200692]
Two novel trinuclear europium complexes based on trisphen(1,3,5-tris{4-((1,10-phenanthroline-[5,6-d]imidazol-2yl)phenoxy)methyl}-2,4,6-trimethyl-benzene) as a second ligand were designed, synthesized, and characterized by FT-IR, H-1 NMR, UV-visible, photoluminescence (PL) spectroscopy, elemental analysis (EA) and ESI-MS. The geometries of these two trinuclear europium complexes were predicted using the Sparkle/PM3 model and suggested a chemical environment of very low symmetry around the lanthanide ions (C-1), which is in agreement with the luminescent spectra. CV analysis demonstrated that the trinuclear complexes possessed excellent electro-injection abilities. The effects of two additional Eu3+ lumophors in these trinuclear europium complexes on their photoluminescent properties were investigated in detail. The results indicated that these trinuclear europium complexes exhibited highly luminescent quantum efficiencies and experimental intensity parameters in the solid state. Especially, due to the contribution of the two additional Eu3+ lumophors in the trinuclear europium complexes, the quantum efficiency of the trinuclear complex Eu-3(TTA)(9)trisphen was higher (ca. 34%) than the mononuclear europium complex Eu(TTA)(3)imidazophen.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据