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Luminescent Lanthanide Complex Sensor for Acac and Cd2+
Photochemistry and Photobiology ( IF 3.3 ) Pub Date : 2020-12-10 , DOI: 10.1111/php.13366
Zhao Chen 1 , Yujia Cai 1 , Yuanjie Ma 1 , Lei Huang 1 , Yongli Zhao 1 , Lei Wang 1
Affiliation  

In this work, phenylmalonic acid (H2pmal) and phenanthroline (phen) are selected to react with Ln(NO3)3·6H2O (Ln = Tb, Eu) to form two lanthanide coordination complex [Ln2(PAA)4(phen)2(NO3)2] (Ln = Tb, Tb complex; Eu, Eu complex), PAA = deprotonated phenylacetic acid, phen = 1,10-phenanthroline). Two lanthanide complexes are stable in neutral, acid (pH = 4) and base (pH = 10) water solutions. Especially, Tb complex is a bifunctional sensor for acac and Cd2+, through luminescence “turn on” and “turn off,” respectively. Importantly, the limit of detections (LODs) for acac and Cd2+ are 90 nm and 0.5 μm, respectively. Furthermore, the sensing mechanisms are discussed in detail.

中文翻译:

用于 Acac 和 Cd2+ 的发光镧系元素复合物传感器

本工作选择苯基丙二酸(H 2 pmal)和菲咯啉(phen)与Ln(NO 3 ) 3 ·6H 2 O (Ln = Tb, Eu)反应生成两种镧系元素配位络合物[Ln 2 (PAA) 4 (phen) 2 (NO 3 ) 2 ] (Ln = Tb, Tb 络合物; Eu, Eu 络合物), PAA = 去质子化苯乙酸, phen = 1,10-菲咯啉)。两种镧系元素配合物在中性、酸性 (pH = 4) 和碱性 (pH = 10) 水溶液中是稳定的。特别是Tb复合物是acac和Cd 2+的双功能传感器,分别通过发光“开启”和“关闭”。重要的是,acac 和 Cd 的检测限 (LOD)2+分别为 90 nm0.5 μ m。此外,还详细讨论了传感机制。
更新日期:2020-12-10
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