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oai:bayburt-rdlopen.rawdatalibrary.net:bayburt/140242026-10-29T20:01:38Zopenairedrivercom_bayburt_10000col_bayburt_10001

Complexation of metal ions with the novel azathia crown ethers carrying anthracene pendant in acetonitrile-dichloromethaneOcak, ÜmmühanOcak, MiraçBaşoǧlu, AyselParlayan, SemanurBaşaran, DilekAlp, HakanKantekin, Halit9-Chloromethyl-anthraceneAl³⁺ cationAzathia donor atomCrown etherFluorescence spectroscopyStability constantA series of crown ethers carrying an anthracene group with nitrogen-sulfur donor atom, which differ in having three, four and five sulfur atoms in the macrocycle was designed and synthesized by the reaction of the corresponding macrocyclic compound and 9-chloromethyl-anthracene. The influence of metal cations such as Al3+, Zn2+, Fe2+, Fe3+, Co2+, Ni2+, Mn2+, Cu2+, Cd2+, Hg2+ and Pb2+ on the spectroscopic properties of the ligands was investigated in acetonitrile-dichloromethane (1:1) by means of absorption and emission spectrometry. Absorption spectra show isosbestic points in the spectrophotometric titration of Al3+, Zn2+, Fe2+, Fe3+, Cu2+, Hg2+ and Pb2+ the results of which disclosed the complexation compositions and complex stability constants of the novel ligands with these cations. The monoazapentathia crown ether showed sensitivity for Al3+ with linear range and detection limit of 2.6 × 10-6 M-2.6 × 10-5 M and 8.1 × 10-7 M, respectively.Elsevier Ltd2010Articlehttps://rdlopen.rawdatalibrary.net/r/bayburt/14024https://doi.org/10.1016/j.poly.2009.11.0100277-5387enPolyhedroninfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://bayburt-rdlopen.rawdatalibrary.net/tr/items/bayburt/14024