Molecular-level design of a photoinduced magnetic spin coupling system: Nickel nitroprusside

Z. Z. Gu, O. Sato, T. Iyoda, K. Hashimoto, A. Fujishima

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Abstract

Rational design of a magnetic material (nickel nitroprusside) at the molecular level allowed switching of a spin coupling by means of photoinduced metal to ligand charge transfer (MLCT). Before irradiation, spins on Ni2+ are in a disordered state. An illumination at 375 nm induces a MLCT from Fe to NO and forms new spins on Fe and NO. The newly appearing spin on Fe orders the spins on the nearest Ni2+ ions around Fe. In other words, one MLCT aligns five spin sources resulting in the formation of magnetic clusters with S = 5. Furthermore, such a photoinduced spin ordering can be rerandomized by thermal treatment.

Original languageEnglish
Pages (from-to)18289-18291
Number of pages3
JournalJournal of physical chemistry
Volume100
Issue number47
DOIs
Publication statusPublished - Jan 1 1996
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physical and Theoretical Chemistry

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