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Strukturelle Charakterisierung der Dicyanamid-Komplexe von Kupfer(II), Nickel(II) bzw. Kobalt(II) mit Aminopyridinen

  • Mária Hvastijová
  • Jiří Kohout
  • Helmut Köhler
Anorganische Und Physikalische Chemie

Structural characterization of dicyanamide complexes of copper(II), nickel(II), and cobalt(II) with aminopyridines

Summary

New dicyanamide complexes of the typeM[N(CN)2]2L2 (M=Cu or Ni;L=2-, 3-, 4-aminopyridine, 2-amino-5-nitropyridine) and Co[N(CN)2]2 (2-amino-5-nitropyridine)2 were prepared and studied by spectroscopic methods as well as by room-temperature magnetic moments. The results show that the Cu(II) complexes have elongated pseudooctahedral structures while the Ni(II) and Co(II) complexes are octahedral. In most cases the N(CN)2 groups are in bridging function and through their cyanide nitrogens, or-more rarely-amide and cyanide nitrogens connect the basic structure units into polymeric conglomerates. In the Cu(II) systems exchange coupling is seen from the μeff value or ESR spectrum.

Keywords

Aminopyridines Dicyanamide complexes ESR spectra Ligand field spectra Magnetic moments 

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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • Mária Hvastijová
    • 1
  • Jiří Kohout
    • 1
  • Helmut Köhler
    • 2
  1. 1.Lehrstuhl für Anorganische Chemie, Fakultät für chemische TechnologieSlowakische Technische UniversitätBratislavaČSFR
  2. 2.Fachbereich Anorganische ChemieMartin-Luther-UniversitätHalle/SaaleBundesrepublik Deutschland

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