Nickel(II) and Cobalt(II) Complexes with Products of Condensation of 1-Aminonaphthalene (cas 134-32-7), 2-Aminonaphthalenesulfonic-5 Acid, and Aromatic Carbinols

Add time:09/30/2019    Source:infona.pl

Seven new cobalt(II) and nickel(II) complexes with Schiff's bases were synthesized. The Schiff's bases were prepared by the condensation of 1-aminonaphthalene with carbinols, α-hydroxy-α-phenylacetophenone (L1), salicylaldehyde (L2), and 2-hydroxy-1-naphthaldehyde (L3), and of 2-aminonaphthalenesulfonic-5 acid with 2-hydroxy-1-naphthaldehyde (L4). The compounds were studied by X-ray powder diffraction, thermogravimetry, measurements of magnetic susceptibility, and spectroscopy (IR and diffuse reflectance). The coordination sites of the ligand and their dentate members were determined. A coordination number of four was realized in the Ni(II) and Co(II) complexes with L1–L3, and the complexes with L4 were characterized by a coordination number of six (a dimer with an octahedral environment of each central ion).

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