Construction of NIR luminescent nanoscale lanthanide complexes with new flexible Schiff base ligands

作     者：Bichen Yuan Junbin Tao Fei Wang Chaoqun Zhu Min Li Xiaoping Yang Bichen Yuan;Junbin Tao;Fei Wang;Chaoqun Zhu;Min Li;Xiaoping Yang

作者机构：Zhejiang Key Laboratory of Carbon MaterialsCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2020年第38卷第2期

页      面：143-147页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 070205[理学-凝聚态物理] 0817[工学-化学工程与技术] 0708[理学-地球物理学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(21771141) 

主　　题：Construction Schiff base ligands Lanthanide complexes Nanoscale structures NIR luminescence Rare earths 

摘      要：Four mono-and bi-nuclear lanthanide complexes [LnL1(No3)(H2O)DMF](Ln=Nd(1) and Yb(2)) and[Ln2(L2)2(OAc)2](Ln=Nd(3) and Yb(4)) were synthesized by using two new Schiff base ligands with long(CH2)2 NH(CH2)2 *** lengths of the Schiff base ligands are about 1.8 *** bi-nuclear lanthanide complexes 3 and 4 have nanoscale structures with sizes of approximately 0.7 nm×1.1 nm×1.6 *** 3,the molar ratio of Nd:Br:O obtained by the energy dispersive X-ray spectroscopy analysis is in agreement with the crystal *** chromogenic Schiff base ligands in1-4 can efficiently transfer energy to lanthanide ions,thus,these complexes exhibit the typical NIR luminescence of lanthanide ***,3 and 4 have higher NIR emission quantum yields(Φem)than 1 and 2,respectively.