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Thermal analysis of some polynuclear coordination compounds as precursors of iron garnets (M3Fe5O12, M=Y3+ or Er3+)

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Abstract

The thermal behaviour of four coordination compounds (NH4)6[Y3Fe5(C4O5H4)6(C4O5H3)6]·12H2O, (NH4)6[Y3Fe5(C6O7H10)6(C6O7H9)6]·8H2O, (NH4)6[Er3Fe5(C4O5H4)6(C4O5H3)6]·10H2O and (NH4)6[Er3Fe5(C4O6H4)6(C4O6H3)6]·22H2O has been studied to evaluate their suitability for garnet synthesis. The thermal decomposition and the phase composition of the resulted decomposition compounds are influenced by the nature of metallic cations (yttrium-iron or erbium-iron) and ligand anions (malate or gluconate).

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Correspondence to Oana Carp.

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Patron, L., Carp, O., Mindru, I. et al. Thermal analysis of some polynuclear coordination compounds as precursors of iron garnets (M3Fe5O12, M=Y3+ or Er3+). J Therm Anal Calorim 92, 307 (2008) doi:10.1007/s10973-007-8839-4

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Keywords

  • coordination compounds
  • garnets
  • precursors
  • thermal analysis