Weak DyIII-DyIII Interactions in DyIII-phthalocyaninato multiple-decker single-molecule magnets effectively suppress magnetic relaxation

Yoji Horii, Keiichi Katoh, Goulven Cosquer, Brian K. Breedlove, Masahiro Yamashita

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

The DyIII quintuple-decker complex DyCdCdDy and hetero quadruple-decker complex DyCdY were synthesized, and their magnetic properties were compared with those of the quadruple-decker complex DyCdDy. Single-crystal X-ray analysis revealed that the coordination geometries around the DyIII ions of DyCdCdDy, DyCdY, and DyCdDy were similar. dc (direct current) magnetic measurements indicated that DyCdCdDy had very weak ferromagnetic DyIII-DyIII interactions but DyCdY did not. From a comparison of the magnetic relaxation times (τ) of the three complexes, the τ values of DyCdCdDy and DyCdDy, which have weak DyIII-DyIII interactions, are longer than that of DyCdY. In other words, weak DyIII-DyIII interactions effectively suppress magnetic relaxation.

Original languageEnglish
Pages (from-to)11782-11790
Number of pages9
JournalInorganic chemistry
Volume55
Issue number22
DOIs
Publication statusPublished - 2016 Nov 21

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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