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    Öğe
    Cu(II), Co(II), Ni(II), Mn(II), and Fe(II) metal complexes containing N,N?-(3,4-diaminobenzophenon)-3,5-But2-salicylaldimine ligand: Synthesis, structural characterization, thermal properties, electrochemistry, and spectroelectrochemistry
    (Pergamon-Elsevier Science Ltd, 2010) Tas, E.; Kilic, A.; Durgun, M.; Kupecik, L.; Yilmaz, I.; Arslan, S.
    The synthesis, structure, spectroscopic and electro-spectrochemical properties of steric hindered Schiff-base ligand [N,N'-(3,4-benzophenon)-3,5-Bu-2(t)-salicylaldimine (LH2)] and its mononuclear Cu(II), Co(II), Ni(II), Mn(II) and Fe(II) complexes are described in this work. The new dissymmetric steric hindered Schiff-base ligand containing a donor set of NONO was prepared through reaction of 3,4-diaminobenzophenon with 3,5-Bu-2(t)-salicylaldehyde. Certain metal complexes of this ligand were synthesized by treating an ethanolic solution of the ligand with an equimolar amount of metal salts. The ligand and its complexes were characterized by FT-IR, UV-vis, H-1 NMR, elemental analysis, molar conductivity and thermal analysis methods in addition to magnetic susceptibility, electrochemistry and spectroelectrochemistry techniques. The tetradentate and mononuclear metal complexes were obtained by reacting N,N'-(3,4-benzophenon)-3,5-Bu-2(t)-salicylaldimine (LH2) with some metal acetate in a 1:1 mole ratio. The molar conductance data suggest metal complexes to be non-electrolytes. (C) 2009 Elsevier B.V. All rights reserved.
  • [ X ]
    Öğe
    Synthesis, structural characterization, electrochemistry and spectroelectrochemistry of dinuclear copper(II) metal complexes stabilized by a tetradentate NOOO salicylaldimine ligands
    (Elsevier, 2009) Tas, E.; Onal, I. H.; Yilmaz, I.; Kilic, A.; Durgun, M.
    The synthesis, structure, spectroscopic and electro-spectrochemical properties of salicylaldimine Schiff-base ligands (LnH) (n = 1, 2, and 3) (L1H = N-[2-amino-8-hydroxyquinoline]-salicylaldimine, L2H = N-[2-amino-8-hydroxyquinoline]-5-bromosalicylaldimine and L3H = N-[2-amino-8-hydroxyquinoline]-5methoxysalicylaldimine), respectively, and their dinuclear copper(II) complexes [Cu-2(L-n)(2)] are described. Three new dissymmetric tetradentate salicylaldimine ligands containing a donor set of NOOO were prepared by reaction of 2-amino-8-hydroxyquinoline with different salicylaldehydes. The dinuclear copper(II) metal complexes of these ligands were synthesized by treating an ethanolic solution of the appropriate ligand with an equimolar amount of Cu(Ac)(2)center dot H2O. The ligands and their copper complexes were characterized by FT-IR, UV-vis, H-1 NMR, elemental analysis, molar conductivity, mass spectra and thermal analysis methods in addition to magnetic susceptibility and spectroelectrochemical techniques. The reaction of these ligands in a 1:1 mole ratio with copper(II) acetate afforded dinuclear Cu(II) metal complexes. The room temperature magnetic moments Of [Cu-2(L-n)(2)] complexes are found between 1.12 and 1.28 BM for per Cu(II) molecule. (C) 2009 Elsevier B.V. All rights reserved.