Abstract
A new dansyl derived fluorescent sensor for Cu(II) ions ( 1) has been isolated by four-step organic synthesis with a good yield and characterized by NMR- and ESI-MS methods. UV–Vis and fluorescent titrations of 1 with Cu(II), Co(II), Zn(II), Ni(II), Ca(II) and Mg(II) salts were performed. 1 forms a 1:1 stable complex in solution (1 × 10 −6 M) with Cu(II) and does not form such complex with other metals. 1 has been attached to a CPG 1000/100 resin. The fluorescence images of CPG 1000/100 resin with 1 have shown strong fluorescence and complete absence of it in the presence of Cu(II) anions.
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