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The present article describes the
synthesis, characterization and thermal studies of newly synthesized
Fe(III) and VO(IV) complexes from heterocyclic Schiff base ligand.
The new Schiff base ligand has been synthesized by refluxing
chalcone
3-chloro-6-hydroxy-2-methylphenyl-3-(3,4-dimethoxyphenyl)prop-2-en-1-one
with isonicotinic hydrazide in the ethanolic medium. The reaction of
this ligand with metal salts results in the formation of respective
metal complexes. The compounds were characterized on the basis of
elemental analysis, molar conductance, infrared (IR),
ultraviolet-visible, mass, and 1H-nuclear magnetic resonance
spectroscopic techniques. IR spectral data show that ligand act as
monobasic tridentate ONO donor toward Fe(III) ion and monobasic
bidentate ON donor toward VO(IV) ion. Thermal stability and
decomposition behavior of complexes have been studied with the help
of thermogravimetric technique at a heating rate 10°C min−1 in a
nitrogen atmosphere. |
