六齿喹啉类铒配合物结构表征及其发光性能研究
The structure and luminescence of molecular erbium complex with hexadentate quinoline
王慧娟 1蒋悦 1徐海兵1
作者信息
- 1. 湖北省先进有机化学材料协同创新中心(湖北大学),有机功能分子合成与应用教育部重点实验室(湖北大学),湖北 武汉 430062
- 折叠
摘要
应用醛铵缩合反应进行化合物的合成,该反应是一种基础的有机化学技术.先设计合成 L(TBS)2 前驱体,随后加入 Bu4 NF脱去保护基团 TBS,形成 L2(OH)2 配体,与 Er(hfac)3 反应,并在四氢呋喃/正己烷体系中扩散得到化合物[ErFEr]L2(简称[ErFEr])的晶体.通过单晶数据分析确定化合物的配位方式;通过紫外-可见-近红外吸收光谱、荧光光谱以及寿命研究配体及配合物在固态与溶液中的光学性质和机理.研究结果表明,在同核铒配合物中存在配体到金属的能量转移(LMCT),使其发光范围延长至近红外区,产生了铒的下转移(DL)特征发射.
Abstract
The synthesis of the compound was carried out by aldehyde-ammonium condensation reaction,which was a basic organic chemistry technique,L1(TBS)2 precursor was designed and synthesized,then Bu4 NF was added to remove the protective group TBS to form L2(OH)2 ligand,which reacted with Er(hfac)3 and diffused in the tetrahydrofuran/n-hexane to obtain the crystals of the compound[ErFEr]L2(referred to as[ErFEr]).The coordination mode of the compound was determined by X-ray crystallography analysis.The luminescence properties of ligands and complexes in both solid state and solution were researched by UV-Vis-NIR absorption spectra,luminescence spectra and lifetime.The results show that there is an energy transfer from ligand to metal(LMCT)in the homonuclear erbium complex,which extends the luminescence range to the near-infrared region,resulting in characteristic ErⅢ-based downshifting luminescence(DL).
关键词
铒配合物/六齿喹啉/配体到金属的能量转移/下转移特征发射Key words
erbium complex/hexadentate quinoline/energy transfer from ligand to metal(LMCT)/downshifting luminescence(DL)引用本文复制引用
出版年
2025
NETL
NSTL
万方数据