The design and synthesis of new fluorescent metal recognition structures in a predictable way is a highly desirable and challenge in modern chemistry. To this aim, the understanding of the structural roles governing the binding properties allows the suitable design of efficient new fluorescent sensor for metal ions. Heavy metal ions have risks to human health and environment and the development of fluorescent molecular sensors has been of particular interest. Among them, Hg(II) are widely used in electrical equipment, catalyst, and paints then released into environment. Thus, it is highly desirable to develop the Hg(II) sensor applicable in industrial waste site and environment. A number of fluorescent Hg(II) sensor have been reported due to their potential promises to on-site and real-time detection of toxic metal ions with low detection limits. However, there are few examples of chemosensors for the detection of Hg(II) in acidic aqueous solution. Herein, we report a new fluorescent sensor BP  for selective detecting Hg(II) in acidic aqueous solution based on BODIPY and DPA. Unlike other chemosensors bearing DPA as ligand, the BP  showed excellent selectivity toward Hg(II) over other metal ions. BP  exhibited simultaneous colormetric and fluorescence enhancement upon the addition of Cu2+. Furthermore, BP  evencan detectHg(II) in very stong acidic condition (pH=2).

Rapid fluorescent sensor for Hg(II) in acid aqueous solution

245th National Meeting (2013)

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