Recent progress in Pt(II)- and Ir(III)-complex-based chemical sensors for detecting picric acid
Xiaoran Yang1, Qinglong Zhang1, Boyuan Miao2
1State Key Laboratory of Fine Chemicals, Dalian University of Technology, Linggong Road 2, Dalian 116024, China. cliu@dlut.edu.cn.
Dalton Transactions (Cambridge, England : 2003)
|January 6, 2026
Summary
This review highlights platinum (Pt(II)) and iridium (Ir(III)) complexes for efficiently detecting picric acid (PA). These complexes offer tunable luminescence and photostability, crucial for explosives detection and environmental monitoring.
Area of Science:
- Analytical Chemistry
- Materials Science
- Environmental Science
Background:
- Picric acid (PA) detection is vital for environmental protection and counter-terrorism.
- Metal complexes, particularly Pt(II) and Ir(III), are promising for PA sensing due to their photophysical properties.
Purpose of the Study:
- To systematically review recent advancements in Pt(II) and Ir(III) complexes for PA detection.
- To analyze the impact of molecular structure design on PA sensing performance in various solvents, especially aqueous media.
Main Methods:
- Literature review focusing on molecular structure design of Pt(II) and Ir(III) complexes.
- Analysis of sensing performance data in different solvent systems, with emphasis on aqueous environments.
Main Results:
- Pt(II) and Ir(III) complexes exhibit excellent photostability and tunable luminescence for PA detection.
- Molecular structure modifications significantly influence the efficiency and selectivity of PA sensing.
Conclusions:
- Pt(II) and Ir(III) complexes represent a key class of materials for sensitive and selective picric acid detection.
- Further research into molecular design and solvent effects will enhance applications in explosives detection and environmental monitoring.
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