Combination of Dynamic Imine Bond Sites and Luminescent Samarium Ion Indicator Enables High-efficient Multi-response for Several Analytes
作者单位：Department of Chemistry Zhejiang Sci-Tech University
会议名称：《中国稀土学会2020学术年会暨江西(赣州)稀土资源绿色开发与高效利用大会》
会议日期：2020年
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0703[理学-化学]
关 键 词：Lanthanide complex Fluorescent probe Imine bond Sm(III) emitter Multi-response
摘 要：The development of efficient sensing materials and convenient detection techniques is of great significance for selective detection and precise determination of critical analytes by the fluorescent method in human health and environmental sciences, especially the multi-response. In recent years, by the pre-organization-assisted template synthesis, we have designed and synthesized serial luminescent Schiff-base macrocyclic Sm(III) complexes bearing dynamic imine bonds as recognition sites and a Sm(III) emitter as the signal indicator, which could provide the selective turn-off fluorescence sensing for several analytes(Li+, Zn2+, F-, PO43-, N2 H4, etc.) over their corresponding analogues based on the stimuli-induced structure transformation. Most of these sensing systems show satisfactory detection performances in terms of the fast response, wide linear range and low detection limit which can be comparable to reported examples. Furthermore, these probes are also used to quantitatively determine targeted species through the probe-impregnated test paper strips and RGB value outputs, and our proposed smartphone-based analytical method still gives satisfactory detection results. It is believed that these works can shed some lights on development of lanthanide-based optical probes.