We designed and synthesized two metal ion binding molecules 3a and 3b based on cysteine. In 3a, pyrene is used as a fluorescent probe, while 3b contains tryptophan, which acts as a fluorescent probe as well as facilitates metal ion binding. Detailed spectroscopic, calorimetric, microscopic and computational studies revealed the binding mode and the plausible structures of the complexes.
V. Haridas, P. P. Praveen Kumar and C. H. Suresh, RSC Adv., 2014, 4, 56539 DOI: 10.1039/C4RA10936H
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