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Transition Metal Chemistry

, Volume 9, Issue 5, pp 184–190 | Cite as

Order and disorder in mixed metal linear chains: The homo and heterobimetallic EDTA (M(H2O)4OIOII)[M′(EDTA)] · 6H2O complexes (M = Mg, Mn, Co, Zn and Ni; M′ = Co, Ni, Cu and Zn)

  • Emilio Escrivá
  • Amparo Fuertes
  • Daniel Beltrán
Full Papers

Summary

Polymetallic solid solutions of the ethylenediaminetetracetic acid (EDTA) and six divalent metal ions exist in the range: MgαMnβCoγZnδNiεCuτ(EDTA) · 6H2O where α + β + γ + δ + ε + τ=2, 0⩽τ⩽1, 0⩽γ,ε,δ⩽2, 0⩽α, β⩽1.

This type of structure is characterized by the presence of two different octahedral carboxylate-bridged coordination sites forming infinite zig-zag chains. Visible and i.r. spectra and t.g.a. analysis show that there is occupational preference for the two coordination sites in the crystalline structure.

Due to this preference, and also to the structural features, the heterobimetallic MM′(EDTA) · 6H2O compounds constitute a structurally new class of materials which can be described as ordered alternating-heterobimetallic polymeric coordination complexes.

Keywords

Physical Chemistry EDTA Inorganic Chemistry Solid Solution Structural Feature 
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

© Verlag Chemie GmbH 1984

Authors and Affiliations

  • Emilio Escrivá
    • 1
  • Amparo Fuertes
    • 1
  • Daniel Beltrán
    • 1
  1. 1.Departamento de Química Inorgánica, Facultad de QuímicasUniversidad de ValenciaBurjasotSpain

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