Robust Room Temperature Hysteresis in an FeIII Spin Crossover Metallomesogen

Anthony J. Fitzpatrick, Paulo N. Martinho, Brendan J. Gildea, John D. Holbrey, Grace G. Morgan*

*Corresponding author for this work

Research output: Contribution to journalArticle

5 Citations (Scopus)
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Abstract

The high temperature magnetic and structural properties of an amphiphilic iron(III) spin crossover complex are reported. Thermal cycling reveals a scan rate-dependent 20 K thermal hysteresis in the mT vs. T data close to room temperature. A fast scan rate is essential for the hysteresis but it is robust and reproducible after multiple thermal cycles. Differential scanning calorimetry and cross polarized microscopy are used to show that the magnetic switching aligns with a material state change from solid to ordered liquid phase on warming.
Original languageEnglish
Pages (from-to)2025-2029
Number of pages5
JournalEuropean Journal of Inorganic Chemistry
Volume2016
Issue number13-14
Early online date16 Dec 2015
DOIs
Publication statusPublished - May 2016

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Keywords

  • Amphiphiles
  • Iron
  • Liquid crystals
  • Metallomesogens
  • Spin crossover

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