Photo-induced spin transition for iron(III) compounds with π-π interactions

Gergely Juhász, Shinya Hayami, Osamu Sato, Yonezo Maeda

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)


The magnetic susceptibilities of the spin-crossover compound [Fe(pap)2]PF6 · MeOH (1) have been measured and compared with that of the previously reported compound [Fe(pap)2]ClO4 · H2O (2). Compound 1 is a spin-crossover compound with spin transition temperature T1/2 = 288 K, and does not show a hysteresis loop around the spin transition temperature, in contrast with compound 2. Magnetic susceptibilities measured after illumination prove that 1 exhibits the LIESST effect, so does compound 2. The crystallographic data on the molecular packing show the presence of π stacking between the aromatic rings of pap ligands, which appears to be responsible for the LIESST effect.

Original languageEnglish
Pages (from-to)164-170
Number of pages7
JournalChemical Physics Letters
Issue number1-2
Publication statusPublished - Sept 23 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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