Field-Induced Slow Magnetic Relaxation of GdIII Complex with a Pt−Gd Heterometallic Bond

Takefumi Yoshida, Goulven Cosquer, David Chukwuma Izuogu, Hiroyoshi Ohtsu, Masaki Kawano, Yanhua Lan, Wolfgang Wernsdorfer, Hiroyuki Nojiri, Brian K. Breedlove, Masahiro Yamashita

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Heterometallic Gd−Pt complexes ([Gd2Pt3(H2O)2(SAc)12] (SAc=thioacetate), [Y1.4Gd0.6Pt3(H2O)2(SAc)12], and [Gd2Pt3(H2O)6(SAc)12]⋅7 H2O have been synthesized. The crystal structures and DFT calculations indicated a Gd−Pt heretometallic bond. Single-crystal ESR spectra determined the direction of magnetic anisotropy as direction of the Gd−Pt bond. In other words, the Gd−Pt bond dictates the direction of magnetic anisotropy. The heterometallic Gd−Pt bond lowers the symmetry of the Gd ion, splitting the Kramers doublet in a dc field. Thus, we observed clear field-induced slow magnetic relaxation of [Y1.4Gd0.6Pt3(H2O)2(SAc)12] up to 36 K. The relaxation process was determined to be a direct process.

Original languageEnglish
Pages (from-to)4551-4556
Number of pages6
JournalChemistry - A European Journal
Volume23
Issue number19
DOIs
Publication statusPublished - 2017 Apr 3

Keywords

  • gadolinium
  • heterometallic bond
  • magnetic properties
  • slow magnetic relaxation
  • thioacetate

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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