Abstract
氨基酸类铱(III)配合物的合成、表征及对汞离子的识别
Synthesis, Characterization and Hg2+ Recognition Property of Iridium(III) Complex Containing L-serine Ligand
Received:March 25, 2019  
DOI:
中文关键词: 铱(III)配合物  合成  光谱性质  DFT  Hg2+离子
英文关键词: iridium(III) complexes  synthesis  spectral property  DFT  Hg2+ ion
基金项目:海南省自然科学基金项目(218QN236,219MS043);海南师范大学2018年省级大学生创新创业训练计划项目(多位点物质敏感的(酸、碱、重金属离子)铱配合物的设计、合成与性质的研究)
Author NameAffiliationE-mail
PENG Hui College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China  
WU Lei College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China  
CHEN Yan College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China  
CHEN Qin College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China  
NIU Zhigang College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China  
LI Gaonan College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China ligaonan2008@163.com 
MO Zhengrong College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China  
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中文摘要:
      以4-(苯并[d]噻唑-2-基)-N,N-二甲基苯胺(1)、L-丝氨酸作为主配体和辅助配体,合成了一种新型环金属铱配合物(2),所有化合物的结构通过1H NMR、MS和IR进行了表征确认。通过紫外吸收光谱和荧光发射光谱研究了铱配合物(2)的光物理性质,并采用含时密度泛函理论(TDDFT)对其最低能量电子跃迁和最低三重激发态进行了计算。而且铱配合物(2)的荧光发射光谱可选择性地被汞离子猝灭,暗示着此配合物可作为一种高效的turn-off型汞离子磷光传感器。
英文摘要:
      A new bis-cyclometalated iridium complex (2) was synthesized using 4-(benzo[d]thiazol-2-yl)- N,N-dimethylaniline as main ligand (1) and L-serine as ancillary ligand, and its structure was fully characterized by 1H NMR, MS and IR. Its photophysical properties were studied by UV-Vis absorption and photoluminescence spectra. The lowest-energy electronic transitions and the lowest triplet excited states were calculated with time-dependent DFT (TDDFT). The emission of iridium complex (2) can be selectively quenched by Hg2+ ion. This suggests that the complex could be an excellent turn-off phosphorescent sensor for Hg2+ ion.
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