Sahin, OzlemYilmaz, Mustafa2020-03-262020-03-2620110040-4020https://dx.doi.org/10.1016/j.tet.2011.03.035https://hdl.handle.net/20.500.12395/26865Fluorogenic tert-butylcalix[4]arenes bearing two pyrene pendant groups at the lower rim were synthesized. Based on ratiometric changes of monomer and excimer emissions, the pyrene amine derivative of calix[4]arene has been found to act as a selective sensor for Pb2+ and Cu2+ ions, respectively, due to a conformational change upon chelation of these ions. (c) 2011 Elsevier Ltd. All rights reserved.en10.1016/j.tet.2011.03.035info:eu-repo/semantics/closedAccessCalix[4]areneSensorFluorogenicMonomerExcimerArticle671935013508Q2WOS:000290602000028Q2