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Transition Metal Chemistry

, Volume 30, Issue 8, pp 992–997 | Cite as

Novel Cobalt(II), Nickel(II) and Copper(II) Complexes of Neutral Orotic Acid. Synthesis, Spectroscopic and Thermal Studies

  • Okan Z. Yeşilel
  • Halis Ölmez
Article

Abstract

The new orotic acid complexes, [MCl2(H2O)3(H3Or)], M=Co(II), Ni(II) and [CuCl2(H2O)(H3Or)3] · H2O, were synthesized and characterized by elemental analysis, magnetic susceptibility, spectral (Diffuse reflectance UV–Vis and FTIR) methods, and simultaneous thermal analysis (TG, DTG and DTA) techniques. Physical measurements indicate that the neutral orotic acid ligands are bonded to metal ions through the carbonyl groups. Two thermal processes of the complexes can occur: dehydration and pyrolytic decomposition. On the basis of the DTGmax, the thermal stability of the complexes follows the order: Co(II) (122 °C) > Cu(II) (77 °C) > Ni(II) (66 °C).

Keywords

Nickel Cobalt Thermal Stability Carbonyl Dehydration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2005

Authors and Affiliations

  1. 1.Department of Chemistry, Faculty of Arts and SciencesOndokuz Mayıs UniversitySamsunTurkey

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