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

65 Citations (Scopus)

Abstract

(Figure Presented) A spin-crossover from Fe II (S = 2)-Nb IV -(S = 1/2)-Fe II (S = 2) to Fe II (S = 0)-Nb IV -(S = 1/2)-Fe II (S = 2) occurs in Fe 2 [Nb(CN) 8 ]·3-pyCH 2 OH) 8 ·.6H 2 O (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 Fe II (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
Externally publishedYes

Keywords

  • Coordination polymers
  • Iron
  • Magnetic properties
  • Niobium

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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