文章摘要
含三苯胺铱(Ⅲ)配合物对硝基芳香化合物的高效发光检测
High-Efficiency Luminescent Detection of Nitroaromatic Com-pounds by A Triphenylamine Substituted Ir(Ⅲ) Complex
投稿时间:2020-02-04  修订日期:2020-03-18
DOI:
中文关键词: 铱(Ⅲ)配合物  发光  硝基芳香化合物  检测机理
英文关键词: Ir(Ⅲ) Complex  Luminescence  Nitroaromatic Compounds  Detection Mechanism
基金项目:国家自然科学基金(21671092),辽宁省教育厅科学研究经费项目(L2019039),辽宁省“兴辽英才”科技创新领军人才项目(XLYC1802057),辽宁石油化工大学科研启动基金(2016XJJ-099, 2017XJJ-001),大学生创新创业训练项目(201910148119)
作者单位E-mail
邢杨 辽宁石油化工大学 xingyang@lnpu.edu.cn 
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中文摘要:
      通过修饰环金属配体2-苯基吡啶设计并合成了含三苯胺基团的铱(Ⅲ)配合物Ir-TPA,并将其作为发光探针用于检测硝基芳香化合物(NACs)包括4-硝基甲苯、1,3-二硝基苯、3-硝基苯甲酸及3-硝基苯甲醇。采用Stern-Volmer方程拟合测试数据,Ir-TPA对3-硝基苯甲酸具有最高的检测效率,KSV达6.18?0.10 mM-1,检测限低至0.0112 mM。光谱分析及密度泛函理论计算证实,Ir-TPA对4种硝基芳香化合物的检测机理为电荷转移机理。本项研究为实现硝基芳香化合物的快速高效检测提供理论及技术支撑。
英文摘要:
      A triphenylamine substituted Ir(Ⅲ) complex Ir-TPA was designed and synthesized by the modification of the cyclometalating ligand 2-phenylpyridine. Then Ir-TPA was employed as a luminescent probe for the detection of nitroaromatic compounds (NACs) include 4-nitrotoluene, 1,3-dinitrobenzene, 3-nitrobenzoic acid, and 3-nitrobenzyl alcohol. The Stern-Volmer equation was employed for the fitting of test data. The highest detection efficiency of Ir-TPA was demonstrated to 3-nitrobenzoic acid with KSV of 6.18?0.10 mM-1 and the detection limit down to 0.0112 mM. The detection mechanism of Ir-TPA to four NACs was assigned to the charge transfer which has been indicated by spectral analysis and density functional theory calculation. This study provides theoretical and technical support for the rapid and efficient detection of NACs.
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