Observation of an iron(II) spin-crossover in an iron octacyanoniobate-based magnet

Michio Arai, Wataru Kosaka, Tomoyuki Matsuda, Shin Ichi Ohkoshi

Research output: Contribution to journalArticlepeer-review

83 Citations (Scopus)

Abstract

(Figure Presented) A spin-crossover from FeII (S = 2)-Nb IV-(S = 1/2)-FeII (S = 2) to FeII (S = 0)-NbIV-(S = 1/2)-FeII (S = 2) occurs in Fe 2[Nb(CN)8]·3-pyCH2OH) 8·.6H2O (3-py = 3-pyridyl) with decreasing temperature (see picture; red Fe, blue Nb). The low-temperature phase shows ferrimagnetism with a Curie temperature of 12 K owing to an antiferromagnetic interaction between the remaining FeII (S = 2) and the Nb IV (S = 1/2) centers.

Original languageEnglish
Pages (from-to)6885-6887
Number of pages3
JournalAngewandte Chemie - International Edition
Volume47
Issue number36
DOIs
Publication statusPublished - 2008 Aug 25

Keywords

  • Coordination polymers
  • Iron
  • Magnetic properties
  • Niobium

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