Erdemir, SerkanKocyigit, OzcanMalkondu, Sait2020-03-262020-03-2620151010-6030https://dx.doi.org/10.1016/j.jphotochem.2015.04.017https://hdl.handle.net/20.500.12395/31987A highly efficient and selective rhodamine B sensor bearing triazole unit (RHT) as the metal ion receptor was designed and synthesized. RHT was characterized by H-1 NMR, C-13 NMR, APT COSY, FTIR, elemental analysis, and also its binding selectivity toward various metal ions was studied. Fluorescence enhancement by factors 24 times was achieved upon selective interaction with Hg2+ ion over other metal ions in aqueous solutions. Selective fluorescent enhancement of RHT was attributed to ring opening from the spirolactam (nonfluorescent) to ring-opened amide (fluorescent). Also, distinct color changes from colorless to pink provided "naked eye" detection of Hg2+. (C) 2015 Elsevier B.V. All rights reserved.en10.1016/j.jphotochem.2015.04.017info:eu-repo/semantics/closedAccessFluorometricColorimetricTurn onTriazoleRhodamineArticle3091521Q2WOS:000356739100003Q2