Single molecule magnet: Heterodinuclear cyano-bridged cubic cluster [(Tp)8Fe4Ni4(CN)12] (Tp = hydrotris(1-pyrazolyl)borate)

Jinkwon Kim, Sujin Han, Jin Mook Lim, Kwang Yong Choi, Hiroyuki Nojiri, Byoung Jin Suh

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

The octanuclear cyano-bridged cluster [(Tp)8Fe4Ni4(CN)12] · H2O · 24CH3CN (1) (Tp = hydrotris(1-pyrazolyl)borate) showing magnetic properties of single-molecule magnet has been synthesized by reaction of [fac-Fe(Tp)(CN)3]- with {(Tp)Ni(NO3)} species formed from an equimolar reaction mixture of Ni(NO3)2 · 6H2O and KTp in MeCN. The X-ray analysis of 1 shows molecular cube structure in which FeIII and NiII ions reside in alternate corners. The average intramolecular Fe⋯Ni distance is 5.124 Å. Out-of-phase ac susceptibility and reduce magnetization measurements show that 1 is a single molecule magnet with ground spin state S = 6 and spin reversal energy barrier U = 14 K. Magnetic hysteresis loops were also observed by applying fast sweeping field.

Original languageEnglish
Pages (from-to)2647-2652
Number of pages6
JournalInorganica Chimica Acta
Volume360
Issue number8
DOIs
Publication statusPublished - 2007 May 30

Keywords

  • Cyano-bridged cluster
  • Iron
  • Magnetic properties
  • Nickel
  • Single-molecule magnets

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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