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 compounds by a triphenylamine substituted Ir(Ⅲ) complex

作　　者：狄玲 操青松 李声笛 许美郁 王伟帅 邢杨 杨占旭[1] DI Ling;CAO Qingsong;LI Shengdi;XU Meiyu;WANG Weishuai;XING Yang;YANG Zhanxu(College of Chemistry,Chemical Engineering,and Environmental Engineering,Liaoning Shihua University,Fushun 113001,Liaoning,China)

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001

出　　处：《精细化工》2020年第7期1408-1413,共6页Fine Chemicals

基　　金：国家自然科学基金(21671092);辽宁省自然科学基金项目(2020-BS-228);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)。

摘　　要：利用三苯胺基团修饰环金属配体2-苯基吡啶合成了铱(Ⅲ)配合物Ir-TPA,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(4-NT)、1,3-二硝基苯(1,3-DNB)、3-硝基苯甲酸(3-NBA)及3-硝基苯甲醇(3-NPM)。采用1HNMR、13CNMR及高分辨质谱对Ir-TPA进行表征,并利用Stern-Volmer方程拟合发光检测数据,Ir-TPA对3-NBA具有最高的检测效率,淬灭常数(KSV)达(6.18±0.10)L/mmol,检测限为1.12×10–5 mol/L。光谱分析及密度泛函(DFT)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。Ir(Ⅲ)complex Ir-TPA was synthesized from triphenylamine group modified cyclometalating ligand 2-phenylpyridine.Then,Ir-TPA was used as a luminescent probe for the detection of nitroaromatic compounds(NACs),including 4-nitrotoluene(4-NT),1,3-dinitrobenzene(1,3-DNB),3-nitrobenzoic acid(3-NBA),and 3-nitrobenzyl alcohol(3-NPM).The product was characterized by 1 HNMR,13 CNMR,and HRMS.And the Stern-Volmer equation was employed for the fitting of the luminescent detection data.Ir-TPA had the highest detection efficiency for 3-nitrobenzoic acid with aquenching constant(KSV)of(6.18±0.10)L/mmol and detection limit of 1.12×10–5 mol/L.Spectral analysis and DFT calculation showed that the detection mechanism of Ir-TPA for four NACs was charge transfer mechanism.

关 键 词：铱(Ⅲ)配合物 发光 硝基芳香化合物 检测机理 功能材料 

分 类 号：X830[环境科学与工程—环境工程] O641.4[理学—物理化学]