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Reactions of metal(II) ions with sugar α-amino acids: nickel(II) complexes containing an α-amino acid derived from galactose or mannose

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Summary

The reaction of NiII ions with 2-(benzylamino)-2-deoxy-d-glycero-l-gluco. heptonic acid (BnGa:C14H21NO7) or 2-(benzylamino)-2-deoxy-d-glycero-d-talo heptonic acid (BnMa:C14H21NO7) in water yields complexes of formulae [Ni(BnGa)2(H2O)2] and [Ni(BnMa)2]·2H2O, respectively, which were characterized by elemental analysis, spectral techniques (u.v.-vis.-n.i.r. and i.r.), magnetic susceptibility measurements, thermal measurements (t.g. and d.s.c.) and X-ray powder diffraction. Both complexes are octahedral with two positions of the coordination sphere occupied by nitrogen atoms. Moreover, in [Ni(BnMa)2]·2H2O four oxygen atoms of bridging carboxylate groups are coordinated to the metal ion, while in [Ni(BnGa)2(H2O)2] only an oxygen atom of each carboxylate group is bound to NiII. In this case, the coordination is completed via two water molecules.

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Authors and Affiliations

  1. Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Extremadura, 06071, Badajoz, Spain

    Alvaro Bernalte-García, M. Angeles Díaz-Díez, Fernando J. García-Barros & Francisco J. Higes-Rolando

  2. Departamento de Química Inorgánica, Facultad de Farmacia, Universidad de Granada, 18071, Granada, Spain

    Cristóbal Valenzuela-Calahorro

Authors
  1. Alvaro Bernalte-García
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  2. M. Angeles Díaz-Díez
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  3. Fernando J. García-Barros
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  4. Francisco J. Higes-Rolando
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  5. Cristóbal Valenzuela-Calahorro
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Bernalte-García, A., Díaz-Díez, M.A., García-Barros, F.J. et al. Reactions of metal(II) ions with sugar α-amino acids: nickel(II) complexes containing an α-amino acid derived from galactose or mannose. Transition Met Chem 21, 197–199 (1996). https://doi.org/10.1007/BF00165966

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  • DOI: https://doi.org/10.1007/BF00165966

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