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| 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 Name | Affiliation | E-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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