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https://hdl.handle.net/11499/8218
Title: | Synthesis and characterization of porphyrazines as novel extractants for the removal of Ag(I) and Hg(II) from aqueous solution | Authors: | Kabay, Nilgün Baygu, Yasemin Alpoğuz, Hamza Korkmaz Kaya, Ahmet Gök, Yaşar |
Keywords: | Calix[4]arene Demetalation Liquid membrane Mixed-donor macrocycle Porphyrazine Transport Calix[4]arenes Macrocycles Porphyrazines Chromium Chromium compounds Lead Lead compounds Liquid membranes Magnesium Manganese Manganese compounds Mercury (metal) Mercury compounds Metal ions Metals Nuclear magnetic resonance spectroscopy Silver compounds Solvent extraction Synthesis (chemical) Zinc compounds Copper |
Abstract: | In this study, the synthesis and characterization of new metal-free and metallo-porphyrazines, peripherally and symmetrically derived from 1,3-Alternate26,28-[34,37-dithia-29,32,40,43-tetraoxa-35-en]calix[4]arene-25, 27-diol, were performed. Dicyano compound was prepared starting from cis-1,2-dicyano-1,2-ethylenedithiolate disodium salt and 1,3-Alternate 26,28-bis[2-(2-iodoethoxy)ethoxy]calix[4]arene-25,27-diol, which was prepared by the conversion reaction of 26,28-bis[2-(2-chloroethoxy)ethoxy] calix[4]arene-25,27-diol with NaI. The demetalation of magnesium porphyrazine was achieved by the treatment with trifluoroacetic acid that resulted in the metal-free derivative. The solvent extraction of heavy metal cations such as Ag(I), Hg(II), Cu(II), Mn(II), Cr(III), Ni(II), Pb(II) and Zn(II) by the dicyano compounds and its derived metal-free and magnesium porphyrazines was investigated. From the results of two phase extraction studies on the novel compounds, one can conclude that the metal-free and metallo-porphyrazines show very high selectivity for silver and mercury ions when compared with other metal ions. The novel compounds were characterized using the techniques of UV-vis, 1H, 13C NMR, IR, MS and elemental analysis. © 2012 Elsevier Ltd. All rights reserved. | URI: | https://hdl.handle.net/11499/8218 https://doi.org/10.1016/j.dyepig.2012.09.002 |
ISSN: | 0143-7208 |
Appears in Collections: | Fen-Edebiyat Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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