Solvent responsive magnetic dynamics of a dinuclear dysprosium single-molecule magnet

Min Ren, Song Song Bao, Norihisa Hoshino, Tomoyuki Akutagawa, Bingwu Wang, Yu Chen Ding, Shiqiang Wei, Li Min Zheng

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)

Abstract

A new dysprosium(III) phosphonate dimer {Dy(notpH4)(NO 3)(H2O)}2×8 H2O (1) [notpH6=1,4,7-triazacyclononane-1,4,7-triyl-tris(methylenephosphonic acid)] that contains two equivalent DyIII ions with a three-capped trigonal prism environment is reported. Complex 1 can be transformed into {Dy(notpH4)(NO3)(H2O)}2 (2) in a reversible manner by desorption and absorption of solvent water at ambient temperature. This process is accompanied by a large dielectric response. Magnetic studies reveal that both 1 and 2 show thermally activated magnetization relaxation as expected for single-molecule magnets. Moreover, the magnetic dynamics of the two compounds can be manipulated by controlling the number of solvent molecules at room temperature. Under control! The magnetic dynamics of a dinuclear single-molecule magnet {Dy(notpH4)(NO3)(H 2O)}2× 8 H2O (see figure; notpH 6=1,4,7-triazacyclononane-1,4,7-triyltris(methylenephosphonic acid)) can be manipulated by controlling the number of solvent molecules at room temperature.

Original languageEnglish
Pages (from-to)9619-9628
Number of pages10
JournalChemistry - A European Journal
Volume19
Issue number29
DOIs
Publication statusPublished - 2013 Jul 15

Keywords

  • dysprosium
  • magnetic properties
  • phosphonates
  • single-molecule magnets
  • solvent effects

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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