A novel n-pivot macrocyclic ligand and its Cobalt(II) phthalocyanine derivative: synthesis, characterization and extractant properties

Year 2018, Volume: 1 Issue: 2, 40 - 45, 20.11.2018

Halil Zeki Gök , Yaşar Gök

Abstract

In this
study, the synthesis of a novel N-pivot 12-membered macrocyclic ligand with
mixed donor atoms 2, which is a
phthalonitrile derivative, and a new cobalt(II) phthalocyanine complex 3 obtained by cyclotetramerization
reaction of  2 were described.  Newly synthesized
compounds were characterized by using several spectroscopic techniques such as
IR, UV-Vis, ¹H and ¹³C NMR, MS and elemental analysis.
These macrocyclic systems 2 and 3 were investigated as extractants in
liquid-liquid extraction technique to reveal metal ion binding capability
towards transition metals such as Ag(I), Hg(II), Cd(II), Zn(II), Cu(II),
Ni(II), Pb(II) and Co(II). The highest
extractability from aqueous phase to organic phase was found for Hg(II) cation
over the other metal cations with cobalt(II) phthalocyanine 3. The extraction percentage of Hg(II)
cation from aqueous phase to chloroform in the presence of cobalt(II)
phthalocyanine 3 as extractant was
found as 96.0%. 

Keywords

Phthalocyanine, Macrocycle, N-Pivot, Transition metal, Solvent extraction

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