Synthesis and electroluminescent property of novel europium complexes with oxadiazole substituted 1,10-phenanthroline and 2,2′-bipyridine ligands
作者:Zhuqi Chen、Fei Ding、Feng Hao、Ming Guan、Zuqiang Bian、Bei Ding、Chunhui Huang
DOI:10.1039/b9nj00461k
日期:——
related europium complexes Eu(TTA)3PhoR and Eu(TTA)3BpoR were synthesized (HTTA = 2-thenoyltrifluoroacetone). Single crystal X-ray diffraction of Eu(TTA)3Php (Php = 2-(pyridyl)-1,10-phenanthroline) shows that Php acts as a tridentate N⁁N⁁N ligand, leading to a high stability of the complex for vacuum evaporation. When an oxadiazole moiety is incorporated into the ligand, the corresponding europium complexes
一些 1,10-菲咯啉 衍生工具(ho), 2,2'-联吡啶 衍生工具(BpoR)和相关 铕 复合体 ((TTA)3 PhoR 和 ((TTA)3 BpoR 合成了(HTTA = 2壬基三氟丙酮)。单晶X射线衍射((TTA)3 Php (Php = 2-(吡啶基)-1,10-菲咯啉)表明 p 充当三叉戟 Ñ ⁁ Ñ ⁁ Ñ配体,从而导致该复合物在真空蒸发中具有很高的稳定性。当一个恶二唑 部分被结合到配体中,相应的 铕 配合物显示出改善的载流子传输能力以及气相沉积下电致发光的热稳定性(电致发光)应用程序。实验表明,这些配合物具有较高的光致发光(PL)量子产率,这是由于配体在19724至22472 cm -1之间的合适的三线态能级(E T),用于增感三聚体。((III)(5 d 0:17500厘米-1)。利用Eu(TTA)3铅 (PhoB = 2-(5-苯基-1,3,4-恶二唑-2-基)-1,10-菲咯啉)作为