期刊
JOURNAL OF MOLECULAR STRUCTURE
卷 1219, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molstruc.2020.129060
关键词
Asymmetric Schiff base ligands; Fluorescence; Lanthanide(iii) complex; Chef effect; near-IR
资金
- Iranian National Sci-ence Foundation: INSF [97002793]
- Spanish Government (Spanish Ministry of Science and Innovation) [PGC2018-098630-B-I00]
In this paper, the HYDRAVH(2) ligand as an asymmetric fluorescence Schiff base ligand was used to pro duce a series of new lanthanide complexes (HYDRAV-Ln(III), Ln: Yb, Er, Gd and Dy) . The structures of the Schiff base complexes are characterized using Fourier transform infrared spectroscopy (FT-IR), MALDI-TOF mass spectrometry, CHN elemental analysis, Ultraviolet-Visible (UV-Vis), fluorescence, near-infrared (NIR) and thermogravimetric analysis (TGA). The photoluminescence properties show that the energy transfer from HYDRAVH2 to Ln(III) ions is effective and the energy levels of HYDRAVH(2) and Ln(III) ions match well, therefore the Ln-compounds exhibit emission in the visible region. The result of the photophysical properties of HYDRAV-Ln(III) also indicates that strong and characteristic Near-IR luminescence for HYDRAV-Yb and HYDRAV-Er are observed, which are attributed to the antenna effect of the HYDRAVH(2) ligands that harvest the light and transfer it to the metal centers. Based on the above results, the ligand and its complexes (HYDRAV-Ln(III)) have remarkable optical features that could be of great utility in optoelectronic devices. (C) 2020 Elsevier B.V. All rights reserved.
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