New dinuclear lanthanide complexes derived from Schiff base ligand and β-diketonate co-ligand: Synthesis, crystal structures, luminescent and magnetic properties
作者:Yao-Yao Duan、Dong-Fang Wu、Huan-Huan Chen、Yun-Juan Wang、Ling Li、Hong-Ling Gao、Jian-Zhong Cui
DOI:10.1016/j.poly.2022.116070
日期:2022.10
indicates that complex 5 and 6 exhibit the characteristic emission peaks of the Er (III) and Yb (III) ions. Significantly, the emission peak of complex 5 at 1530 nm is located in the third telecommunication window of telecommunication, suggesting complex 5 has great potential application in modern telecommunication network. The alternating-current magnetic analysis reveals that the dysprosium complex exhibits
六种新的稀土金属配合物,通式为[RE 2 (HL) 2 (dbm) 2 (CH 3 OH) 2 ] 。2CH 3 OH (RE = Y ( 1 ), Tb ( 2 ), Dy ( 3 ), Ho ( 4 ), Er ( 5 ), Yb ( 6 )) 由席夫碱配体和β-二酮酸盐共合成构建-配体。单晶X射线结构研究表明,1-6是苯氧-O-桥连的中心对称双核配合物,结晶为单斜晶系P 2 1/ n空间群。近红外发光研究表明,配合物5和6表现出 Er (III) 和 Yb (III) 离子的特征发射峰。值得注意的是,络合物5在1530 nm处的发射峰位于电信的第三通信窗口,表明络合物5在现代电信网络中具有巨大的应用潜力。交流磁分析表明,镝配合物在 3000 Oe 的外加直流场下表现出单分子磁体行为。此外,3的有效能垒为12.45 K,指前因子为1.08×10 -6 s。