Institute of Applied Chemistry, School of Chemistry and Chemical Engineering , Jinggangshan University , Ji'an , Jiangxi 343009 , P. R. China.
Inorg Chem. 2018 Sep 17;57(18):11626-11632. doi: 10.1021/acs.inorgchem.8b01739. Epub 2018 Aug 31.
Three novel Ln-Hg complexes [Ln(HO)(μ-IA)HgBr] (Ln = Pr (1), Nd (2), and Er (3); HIA is isonicotinic acid) are synthesized and characterized. They feature three-dimensional (3-D) motifs. Solid-state UV/vis diffuse reflectance spectroscopy found that their band gaps are 4.91, 4.59, and 2.68 eV. It is found that lanthanide ions could adjust the band structures of semiconductors. Their photoluminescence comes from their characteristic emissions of D → H of Pr, F → S and F → I of Nd, and I → F and I → S of Er. The CIE chromaticity coordinate is ( x = 0.5726, y = 0.4206), ( x = 0.7268, y = 0.2732), and ( x = 0.2923, y = 0.4317). Their magnetization susceptibility totally obeys the Curie-Weiss equation with antiferromagnetic performances.
三种新型 Ln-Hg 配合物[Ln(HO)(μ-IA)HgBr]（Ln=Pr（1），Nd（2）和 Er（3）；HIA 是异烟酸）被合成并进行了表征。它们具有三维（3-D）结构。固态 UV/vis 漫反射光谱发现它们的带隙分别为 4.91、4.59 和 2.68 eV。研究发现，镧系离子可以调节半导体的能带结构。它们的光致发光来自于 Pr 的 D→H、Nd 的 F→S 和 F→I 以及 Er 的 I→F 和 I→S 的特征发射。CIE 色度坐标分别为（x=0.5726，y=0.4206）、（x=0.7268，y=0.2732）和（x=0.2923，y=0.4317）。它们的磁化率完全符合反铁磁性能的居里-外斯方程。
