Synthesis, characterization and electrochemistry of a new organosoluble metal-free and metallophthalocyanines

Biyiklioglu, Zekeriya/0000-0001-5138-214X; TOPCU, Saim/0000-0002-1169-6037WOS: 0002557210000194 -[2-(Phenylthio)ethoxy]phthalonitrile 3 was synthesized by nucleophilic displacement of nitro group in 4-nitrophthalonitrile with 2-(phenylthio)ethanol 1. The metal-free phthalocyanine 4 was prepared by the reaction of a dinitrile monomer with 2-(dimethylamino)ethanol. Ni(II), Co(II), Cu(I) phthalocyanines 5, 7, 8 were prepared by reaction of the dinitrile compound with the chlorides of Ni(II), Co(II), Cu(I) in DMAE. Zn(II) phthalocyanine 6, was prepared by reaction of the dinitrile compound with the acetates of Zn(II) in DMAE. Electrochemical behaviours of novel metal-free, Co(II) and Zn(II) phthalocyanines were investigated by cyclic voltammetry, potential differential pulse voltammetry techniques. The new compounds were characterized by a combination of IR, (1)H NMR, (13)C NMR, UV-Vis, elemental analysis and MS spectral data. (C) 2008 Elsevier Ltd. All rights reserved

New heavy metal ion-selective macrocyclic ligands with nitrogen and sulfur donor atoms and their extractant properties

Biyiklioglu, Zekeriya/0000-0001-5138-214XWOS: 000245356300009Two new macrocyclic ligands, containing nitrogen and sulfur donor atoms were designed and synthesized in a multi-step reaction sequence. The macrocycles with amide group were used in solvent extraction of picrates of metals such as Ag+, Hg2+, Cd2+, Zn2+, Cu2+, Ni2+, Mn2+, CO2+ and Pb2+ from aqueous phase to the organic phase. The metal picrate extractions were investigated at 25 +/- 0.1 degrees C by using UV-visible spectrometry. The extractability and selectivity of the mentioned metal picrates were evaluated according to the organic solvents. The values of the extraction constants (log K-ex) and the complex compositions were determined for the extracted complexes