Ozay, HavaKagit, ReyhanYildirim, MehmetYesilot, SerkanÖzay, Özgür2025-01-272025-01-2720141053-05091573-4994https://doi.org/10.1007/s10895-014-1444-6https://hdl.handle.net/20.500.12428/23127The hexapodal Rhodamine B derivative compound 3 containing a cyclotriphosphazene core was synthesized and characterized by spectroscopic techniques such as FT-IR, H-1, C-13 and P-31 NMR, HR-MS, MALDI MS and microanalysis. Compound 3 is a naked eye selective sensor with colorimetric and fluorescent properties for Hg2+ ions in the presence of other metal ions such as Na+, K+, Ca2+, Ba2+, Mg2+, Ag+, Mn2+, Cu2+, Ni2+, Co2+, Pb2+, Cd2+, Zn2+, Fe2+, Fe3+, and Cr3+. The optical sensor properties of compound 3 were investigated using UV-vis and fluorescence spectroscopy. The lowest detection limit of compound 3 was determined as 3.76 x 10(-9) M (0.75 ppb) for Hg2+ ions. The stoichiometry of compound 3-Hg2+ complex was found to be 1:3 (ligand/metal ion). The reusable test strip was improved by the immobilization of compound 3 into a hydrogel network. The reusability of the sensor and test strip was tested with S2- ion solutions.eninfo:eu-repo/semantics/closedAccessMercuryRhodamine sensorTest stripPhosphazeneNaked-eyeHexapodalArticle2461593160110.1007/s10895-014-1444-6Q3WOS:0003456432000052-s2.0-8491358321625169766Q3