Metal complexes with schiff bases obtained from salicylaldehyde derivatives and 2-aminoethylpyridine

  • Yamanouchi K
  • Yamada S
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Cobalt(II), cobalt(III), nickel(II), copper(II) and palladium(II) complexes with N-2-(2-pyridyl)ethylring-substituted salicylideneiminates (abbreviated as X-Sal-2-Epy) were synthesized. In addition to CoIII(H-Sal-2-Epy)3, the complexes of the formula MII(X-Sal-2-Epy)2·nH2O were obtained in crystals. The cobalt(III) complex is diamagnetic and has an electronic absorption spectrum typical of the six-coordinate, octahedral cobalt(III) complex. The cobalt(II) complexes in the solid state show electronic spectra typical of the six-coordinate cobalt(II) complexes. Electronic spectra also indicate that the nickel(II) complexes in the solid state and in non-donor solvents are six-coordinate, octahedral. In the cobalt(II) and nickel(II) complexes, the ligand X-Sal-2-Epy functions as terdentates, while in the cobalt(III) complex it acts as a bidentate ligand. The results are compared with those reported previously for related ligands. © 1975.

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  • K. Yamanouchi

  • S. Yamada

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