| 基于混合配体锌配位聚合物对金霉素的荧光传感 | |
| Fluorescence sensing on chlortetracycline of a Zn-coordination polymer based on mixed ligands | |
| 摘要: 以2，2'-硫代二异烟酸(H2L)和1，10-菲咯啉(Phen)为配体，与Zn (NO3)2·6H2O通过溶剂热法合成新型配位聚合物{[Zn (L)(Phen)]·H2O}n(Zn-CP)，并通过单晶X射线衍射、粉末X射线衍射、红外分析、元素分析和热重分析对Zn-CP进行表征。荧光研究结果表明：Zn-CP对金霉素(CTC)具有荧光猝灭响应，Zn-CP检测CTC在5.0~40.0 μmol·L-1范围内具有良好的线性关系，检出限为72.9 μmol·L-1。机理研究表明CTC对Zn-CP荧光的猝灭作用是由于能量竞争吸收导致。 | |
| 关键词: 配位聚合物 荧光传感 金霉素 2，2-硫代二异烟酸 1，10-菲咯啉 | |
| 基金项目: 2024年国家级大学生创新训练计划(No.202410149010)资助。 | |
| Abstract: A 1D Zn-based coordination polymer, {[Zn(L)(Phen)]·H2O}n (Zn-CP), was synthesized by the solvothermal method using 2,2'-thiodiisonicotinic acid (H2L) and 1,10-phenanthroline (Phen) as ligands. The structure of ZnCP was characterized by single-crystal X-ray diffraction, powder X-ray diffraction, infrared analysis, elemental analysis, and thermogravimetric analysis. The results of the fluorescence studies demonstrated that Zn-CP exhibited a fluorescence quenching response to the chlortetracycline (CTC). In addition, Zn-CP exhibited excellent sensitivity and a rapid response time of 30 s, while maintaining a high detection efficacy after five cycles. A strong linear relationship was observed within the detection range of 5.0-40.0 μmol·L-1, with a detection limit of 72.9 μmol·L-1. The fluorescence mechanism studies indicate that the quenching sensing effect of Zn-CP on CTC is a consequence of energy competition absorption. | |
| Keywords: coordination polymer fluorescence sensing chlortetracycline 2,2'-thiodiisonicotinic acid 1,10-phenanthroline | |
| 投稿时间：2024-08-14 修订日期：2024-10-17 | |
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| 于忠鑫,宋伟,刘洋,丁玉雪,孟繁浩,王淑菊,由立新.基于混合配体锌配位聚合物对金霉素的荧光传感[J].无机化学学报,2024,40(12):2415-2421. | |
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