Stress-induced ligand field distribution and consequent multi-mode spin crossover in FeII(phen)2(NCS)2 and FeII[HB(pz)3]2

Naoko Tsuchiya, Atsushi Tsukamoto, Tadashi Ohshita, Tetsuhiko Isobe, Mamoru Senna, Naoki Yoshioka, Hidenari Inoue

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Abstract

Changes in the nature of spin crossover caused by mechanical stressing exerted on the crystalline powders were studied for FeII(phen)2(NCS)2 (phen = 1,10-phenanthroline) and FeII[HB(pz)3]2 (pz = pyrazol-1-yl) by means of a multi-component fitting of the temperature dependence of magnetic susceptibility. The analysis revealed the development and broadening of the ligand field distribution as a consequence of mechanical stressing. This was confirmed by the broadening of Mössbauer and far-infrared spectra.

Original languageEnglish
Pages (from-to)705-714
Number of pages10
JournalSolid State Sciences
Volume3
Issue number6
DOIs
Publication statusPublished - 2001 Oct 8

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Keywords

  • Fe(II) complex crystal
  • Fe-N coordination bond length
  • Ligand field distribution
  • Mechanical stressing
  • Multi-mode spin crossover

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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