Fabrication of a novel Eu3+-functionalized Mn-MOF based on the X-type tetracarboxylate ligand for efficient temperature sensing

IF 4 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Structure Pub Date : 2024-09-12 DOI:10.1016/j.molstruc.2024.140031

引用次数: 0

Abstract

In this work, by utilizing an X-type tetracarboxylate ligand (1,2,4,5-tetrakis(4-carboxyphenyl)benzene, H₄TCPB), a novel Mn-organic framework, namely, [(CH₃CH₂)₂NH₂]₂[Mn(TCPB)(H₂O)₂] (SQNU-25, SQNU = Shangqiu Normal University), was prepared under a DEF/HAc solm. Due to the structural advantage of SQNU-25, the Ln³⁺ ions (Eu³⁺ and Gd³⁺) have been successfully introduced into the framework by post-synthetic modification. The result of the energy levels of the H₄TCPB ligand and Eu³⁺ ion shows that the H₄TCPB ligand as a chromophore can effectively sensitize Eu³⁺ ions. Moreover, the Eu@SQNU-25 not only shows a typical Eu³⁺ ion red emission but also exhibits good temperature sensing in the wide temperature range (80 to 300 K).

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基于 X 型四羧酸配体制备新型 Eu3+ 功能化 Mn-MOF，用于高效温度传感

本研究利用X型四羧酸配体（1,2,4,5-四(4-羧基苯基)苯，H4TCPB），在DEF/HAc溶胶条件下制备了新型锰有机框架，即[(CH3CH2)2NH2]2[Mn(TCPB)(H2O)2]（SQNU-25，SQNU=商丘师范学院）。由于 SQNU-25 的结构优势，通过后合成修饰，成功地将 Ln3+ 离子（Eu3+ 和 Gd3+）引入到框架中。H4TCPB 配体和 Eu3+ 离子的能级结果表明，H4TCPB 配体作为发色团可以有效地敏化 Eu3+ 离子。此外，Eu@SQNU-25 不仅显示出典型的 Eu3+ 离子红色发射，而且在较宽的温度范围（80 至 300 K）内表现出良好的温度传感性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

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