FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL
(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170
keywords: Infrared spectra, magnetic moments, molar conductivity, weak field ligand
Four metal(II) amino acids complexes in aqueous basic solution were synthesized and analyzed by means of gravimetric analyses, molar conductivity measurements, magnetic susceptibility measurements, powder X-ray diffraction analysis, UV Vis and IR spectroscopies. Molar conductivity measurements showed that the composition of the metal complexes correspond to a metal amino acid ligand ratio of 1:2. The IR spectra showed that the amino acids act as bidentate ligands with coordination involving the carboxyl oxygen and the nitrogen of the amino group. The result also suggests the presence of crystal water in all the complexes. Electronic spectra and magnetic susceptibility measurements suggested a four coordinate local symmetry around the Ni (tetrahedral) ions, and octahedral local symmetry for Co ion. Magnetic susceptibility studies also revealed that the complexes of Co and Ni are paramagnetic with values of magnetic moments ranging from ...
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