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  • Title: A new bis(rhodamine)-based fluorescent chemosensor for Fe3+.
    Author: Chen X, Hong H, Han R, Zhang D, Ye Y, Zhao YF.
    Journal: J Fluoresc; 2012 May; 22(3):789-94. PubMed ID: 22147022.
    Abstract:
    A new bis(rhodamine)-based fluorescent probe 4 was synthesized, and it exhibited high selectivity for Fe(3+) over other commonly coexistent metal ions in both 50% ethanol and Tris-HCl buffer. Upon the addition of Fe(3+), the spirocyclic ring of 4 was opened and a significant enhancement of visible color and fluorescence in the range of 500-600 nm was observed.
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