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A dual-function fluorescent probe for Hg (II) and Cu (II) ions with two mutually independent sensing pathways and its
Ming Dong1, Jinyu Tang1, Yanfei Lv1
1Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry, Tianjin Normal University, Tianjin, 300387, PR China.
Abstract:
A dual-function fluorescent Probe 1 has been synthesized conveniently by coupling rhodamine hydrazone with O-vinyl protected hydroxyl benzaldehyde. Probe 1 was a highly selective and sensitive chemodosimeter for Hg2+ through specific hydrolysis reaction of vinyl ethers with significant fluorescence quenching in CH3CN-PBS buffer (3:7, v/v) solution. Meanwhile, Probe 1 showed a ratiometric fluorescent detection of Cu2+ with a remarkable large Stokes shift (150 nm) by the opening of the spirolactam ring in CH3CN-PBS buffer (3:7, v/v) solution. Hence, the two recognition mechanisms realized well by using a single fluorescent probe. Moreover, Probe 1 could be efficiently applied to the combinatorial logic circuit of NOR and INHIBIT gates through the procured spectral results, respectively.
