Structural Analysis of [Fe(ptz)6)](BF4)2 under Photo-Excitation - Condensation of Photo-Excited High-Spin Ions

Yutaka Moritomo, Kenichi Kato, Akira Kuriki, Akio Nakamoto, Norimichi Kojima, Masaki Takata, Makoto Sakata

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


We have performed in situ synchrotron-radiation X-ray powder structural analysis in a spin-crossover complex ([Fe(ptz)6)](BF 4)2: ptz = propyltetrazole) under a photo-excitation with a continuous-wave (CW) green (532nm) laser at 91 K. The Fe2+ ions in the Fe(ptz)6 molecules take the low-spin (LS: S = 0) state at the ground state, and are photo-excited selectively into the high-spin (HS: S = 2) state. When the excitation power P exceeds the critical value, we observed a novel secondary phase which can be ascribed to the condensation of the photo-excited HS ions.

Original languageEnglish
Pages (from-to)2609-2612
Number of pages4
Journaljournal of the physical society of japan
Issue number11
Publication statusPublished - 2002 Nov 1
Externally publishedYes


  • Rietveld structural analysis
  • Spin-crossover complex
  • Synchrotron-radiation X-ray powder diffraction

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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