Spin-state transitions in an iron spin-crossover complex observed with X-ray emission and X-ray absorption

H. Osawa, T. Iwazumi, H. Shoji, E. Hirai, T. Nakamura, Y. Ogawa, T. Ishikawa, S. Koshihara, Y. Isozumi, S. Nanao

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The thermal- and photon-induced phase transitions of [Fe(2-pic) 3]Cl2EtOH from a high-spin (HS) state (S=2) to a low-spin (LS) state (S=0) were observed by X-ray Emission Spectroscopy (XES) and X-ray Absorption Spectroscopy (XAS). The spin state was observed with Fe 3p-1s XES from the HS and photon-induced (PI) phase took S = 2 and LS state took S = 0. Each spectrum of the decay process from the PI phase to the LS state could be described with the superposition of those of the HS and LS states, In XAS, a different spectrum was also observed in the HS and LS states, and likewise by XES; the difference in the pre-edge structure between the HS and LS states was explained based on the difference of Fe unoccupied 3d partial density of state calculated by the DV-Xα method.

Original languageEnglish
Pages (from-to)919-925
Number of pages7
JournalPhase Transitions
Volume75
Issue number7-8
DOIs
Publication statusPublished - 2002 Jan 1
Externally publishedYes

Keywords

  • Photon-induced phase transition
  • Spin-crossover
  • X-ray absorption spectroscopy
  • X-ray emission spectroscopy

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

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