Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex

Frederico F. Martins, Abhinav Joseph, Hermínio P. Diogo, Manuel E. Minas da Piedade, Liliana P. Ferreira, Maria Deus Carvalho, Sónia Barroso, Maria João Romão, Maria José Calhorda, Paulo N. Martinho

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The new iron(III) complex [Fe(5-I-salEen)2]ClO4 exhibits both spin crossover, with hysteresis, between 304 K and 320 K (16 K hysteresis loop), and thermosalient phenomena. After a symmetry-breaking phase transition between 120 and 130 K, confirmed by single-crystal X-ray diffraction, and the fragmentation of the crystals around 312 K, confirmed by differential scanning calorimetry and hot stage microscopy, the hysteresis loop disappears. This is the first example where the explicitly reported thermosalient effect modifies the magnetic properties of a given spin crossover crystal.

Original languageEnglish
Pages (from-to)2976-2983
Number of pages8
JournalEuropean Journal of Inorganic Chemistry
Volume2018
Issue number25
DOIs
Publication statusPublished - 6 Jul 2018

Keywords

  • Iron
  • Magnetic properties
  • Moving crystals
  • Schiff base ligands
  • Spin crossover
  • Thermosalient effect

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    Martins, F. F., Joseph, A., Diogo, H. P., Minas da Piedade, M. E., Ferreira, L. P., Carvalho, M. D., ... Martinho, P. N. (2018). Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex. European Journal of Inorganic Chemistry, 2018(25), 2976-2983. https://doi.org/10.1002/ejic.201800605