The synthesis and spectral profile of a cyclam-type “turn on” fluorescent sensor selective for Hg2+ ions in aqueous media is described. Its properties are compared to those of a second probe with an N-deprotected cyclam system. The vast difference in ion selectivity between the two sensors reveals the influence of functional group modifications on the selectivity of fluorescent ion probes.
S. Voutsadaki, G. K. Tsikalas, E. Klontzas, G. E. Froudakis, S. A. Pergantis, K. D. Demadis and H. E. Katerinopoulos, RSC Adv., 2012, 2, 12679 DOI: 10.1039/C2RA20971C
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