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VOL. 10, ISSUE 2 (2026)
Structural studies of nickel (II) complexes with tetradentate Schiff base ligand
Authors
Maneesh Kumar Pandey, Manoj Kumar, Kamlesh Kumar Singh
Abstract
Ni(II) complexes with a tetradentate Schiff
base ligand have been synthesized from the condensation reaction of
2,6-diacetyl pyridine with 2-amino acetohydroxamic acid in an alcoholic medium
at room temperature. The Schiff base and its synthesized nickel complexes were
characterized by elemental analysis, molar conductivity measurements, magnetic
moment measurements, IR, NMR and UV-Vis spectral data investigations. The lower
molar conductance value of the synthesized nickel (II) complexes in DMF solution
indicates that the complexes are non-electrolytic in nature. The synthesized
metal chelates have the general formula [M(L)(B)2], where M = Ni, L
is a Schiff base, and B represents a base such as ammonia, water, pyridine,
phenyl-isocyanide, or α-picoline. All synthesized Ni (II) complexes are
paramagnetic because they contains unpaired electrons. IR spectra of the Schiff
base indicate that the ligand acts as a bianionic tetradentate and is coordinated
by two nitrogen atoms of the hydroxamic acid group and two nitrogen atoms of
the azomethine group to nickel ions. On the basis of elemental analysis,
magnetic behavior, and spectral data, we suggest an octahedral geometry for the
nickel(II) complexes.
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Pages:117-120
How to cite this article:
Maneesh Kumar Pandey, Manoj Kumar, Kamlesh Kumar Singh "Structural studies of nickel (II) complexes with tetradentate Schiff base ligand". International Journal of Chemistry Studies, Vol 10, Issue 2, 2026, Pages 117-120
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