Two novel Hg²⁺ fluorescent probes W-5 and W-6 have successfully been designed and synthesized based on benzothiazole derivatives as fluorophores and thiocarbonate moiety as recognition group. The structures of W-5 and W-6 were confirmed by NMR, HRMS and X-ray crystallography analysis. The probes W-5 and W-6 showed the ratio (F₅₂₅/F₄₀₅, large emission shift 120 nm) and “turn-on” fluorescence signals, respectively. Their advantages are excellent selectivity and anti-interference. Moreover, the probes W-5 and W-6 can provide excellent methods for the determination of Hg²⁺ in BSA and calf serums.

中文翻译：

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基于反应的两种新型荧光探针，用于通过苯并噻唑衍生物通过水溶液和血清中的ESIPT机理检测Hg ²⁺

基于苯并噻唑衍生物作为荧光团和硫代碳酸酯部分作为识别基团，成功设计并合成了两种新型的Hg ²⁺荧光探针W-5和W-6。W-5和W-6的结构通过NMR，HRMS和X射线晶体学分析确定。探针W-5和W-6分别显示了比率（F ₅₂₅ / F ₄₀₅，大发射位移120 nm）和“开启”荧光信号。它们的优点是优异的选择性和抗干扰性。此外，探针W-5和W-6可以为测定BSA和小牛血清中的Hg ²⁺提供出色的方法。