两个阴离子对一个配合聚合物的光发射的顺序效应,该聚合物在节点中具有Zn4O核心
Jagajiban Sendh1, Jubaraj B Baruah1
1Department of Chemistry, Indian Institute of Technology Guwahati Guwahati-781 039 Assam India juba@iitg.ac.in +91-361-2582311.
RSC advances
|October 8, 2024
概括
一种新的协调聚合物及其配体H2NAPHISO在与各种金属离子相互作用时呈现出明显的光变化. 这允许通过二进制离子组合选择性检测Fe2+离子和可调节的光学特性.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
背景情况:
- 基于光的传感对于检测金属离子至关重要.
- 协调聚合物提供可调节的光学特性.
- 这种连接物5-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H) -yl) isophthalic acid (H2NAPHISO) 具有用于传感应用的潜力.
研究的目的:
- 为了研究H2NAPHISO及其2D协调聚合物的光反应对不同的金属子.
- 开发一种选择性和敏感的Fe2+离子检测方法.
- 探索使用二进制离子组合的光学性质的调制.
主要方法:
- 一种二维协调聚合物的合成和表征.
- 在各种离子体 (Fe2+,Li+,Na+,Cd2+,Hg2+,Al3+,Mn2+,Sn2+,Zn2+) 的存在下对联体和聚合物的光谱分析 (光发射).
- 确定Fe2+离子的检测极限和选择性.
主要成果:
- 协调聚合物显示了由Fe2+离子选择性光火,使得在42.57nM的检测.
- 自由联体H2NAPHISO在添加Cd2+或Zn2+离子时呈现出新的排放,而Cd2+或Zn2+离子没有被Fe2+灭.
- 金属离子的二进制组合,如Mn2+/Zn2+和Sn2+/Zn2+,调节了H2NAPHISO的发射光谱,允许可调节的光学响应.
结论:
- 开发的协调聚合物为Fe2+检测提供了一个敏感的平台.
- 连接体和聚合物的独特光行为提供了多功能传感和光学调制能力.
- 该研究表明了协调材料在选择性离子传感和可调光发光方面的潜力.
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