设计了一种新型香豆素基多功能荧光探针，用于水溶液中的 Zn²⁺/Cu²⁺/S²⁻。
Design of a novel coumarin-based multifunctional fluorescent probe for Zn²⁺/Cu²⁺/S²⁻ in aqueous solution.
机构信息
College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
出版信息
Mater Sci Eng C Mater Biol Appl. 2015 Dec 1;57:265-71. doi: 10.1016/j.msec.2015.07.064. Epub 2015 Aug 4.
A multifunctional fluorescent chemosensor 7-(diethylamino)-coumarin-3-carbaldehyde-(2'-methylquinoline-4'-formyl) hydrazone (HL) has been designed and synthesized. The sensor shows significant fluorescence enhancement in the presence of Zn(2+), which might be mainly due to the restricted -CN isomerization process. In contrast, the fluorescence of the sensor is quenched by Cu(2+) attributed to the inherent paramagnetic species. More interestingly, the 'in situ' prepared L-Cu exhibits a selective response to S(2-) based on reversible formation-separation of complex L-Cu and CuS.
一种多功能荧光化学传感器 7-(二乙氨基)-香豆素-3-醛-(2'-甲基喹啉-4'-甲酰基)腙（HL）已被设计和合成。该传感器在存在 Zn(2+)时表现出显著的荧光增强，这可能主要归因于受限的-CN 异构化过程。相比之下，传感器的荧光被 Cu(2+)猝灭，这归因于固有的顺磁物种。更有趣的是，L-Cu 的“原位”制备对 S(2-)表现出选择性响应，基于 L-Cu 和 CuS 配合物的可逆形成和分离。
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