Preparation, Structures, Photoluminescence and Semiconductive Properties of Two Novel Lanthanide Mercury Materials with a 3-D Framework Structure.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-11 DOI:10.17344/acsi.2024.8661

Wen-Tong Chen, Hao-Dong Liu, Xi-Yu Shao, Yu-Yue Xu, Cheng Liu, Sheng-Ping Dai, Chang-Wang Pan

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引用次数: 0

Abstract

Two novel lanthanide mercury materials, [Gd(IA)3(H3O)2Hg3Br6]n·2nCl (1) and [La(IA)3(H3O)2Hg3Br6]n·2nCl (2) (IA = isonicotinic anion), have been prepared under solvothermal conditions and characterized by single-crystal X-ray diffraction techniques. They are isomorphic and characterized by a three-dimensional (3-D) framework structure. The lanthanide ions are bound by eight oxygen atoms to exhibit a square antiprismatic geometry. The solid-state photoluminescence experiment discovers that compound 1 shows a strong emission in the red region. Compound 1 possesses CIE (Commission Internationale de I'Éclairage) chromaticity coordinates of 0.7347 and 0.2653. Its CCT (correlated color temperature) is 6514 K. Compound 2 displays yellow photoluminescence and it has CIE chromaticity coordinates of 0.4411 and 0.5151. The CCT of compound 2 is 3633 K. Solid-state UV/Vis diffuse reflectance spectra revealed that their semiconductor band gaps are 2.16 eV and 2.85 eV, respectively.

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两种具有三维框架结构的新型镧系汞材料的制备、结构、光致发光和半导体特性。

在溶热条件下制备了两种新型镧系汞材料：[Gd(IA)3(H3O)2Hg3Br6]n-2nCl (1) 和 [La(IA)3(H3O)2Hg3Br6]n-2nCl (2)（IA = 异烟阴离子），并利用单晶 X 射线衍射技术对其进行了表征。它们是同构物，具有三维（3-D）框架结构。镧系离子由八个氧原子结合，呈现出正方形反三棱几何结构。固态光致发光实验发现，化合物 1 在红色区域显示出强烈的发射。化合物 1 的 CIE（国际照明委员会）色度坐标为 0.7347 和 0.2653。化合物 2 显示黄色光致发光，其 CIE 色度坐标为 0.4411 和 0.5151。化合物 2 的 CCT 为 3633 K。固态紫外/可见漫反射光谱显示，它们的半导体带隙分别为 2.16 eV 和 2.85 eV。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.