Tetranuclear Dysprosium(III) Quintuple-Decker Single-Molecule Magnet Prepared Using a π-Extended Phthalocyaninato Ligand with Two Coordination Sites

Keiichi Katoh, Takaumi Morita, Nobuhiro Yasuda, Wolfgang Wernsdorfer, Yasutaka Kitagawa, Brian K. Breedlove, Masahiro Yamashita

研究成果: Article査読

9 被引用数 (Scopus)

抄録

The magnetic properties and spin relaxation processes of a tetranuclear dysprosium(III) fused phthalocyaninato (Pc4−) quintuple-decker single-molecule magnet (SMM) (1) with non-equivalent octa-coordination geometries are reported. The structure of 1 is regarded as a dimer of Dy3+-Pc triple-decker SMMs with different magnetic relaxation characteristics, corresponding to the octa-coordination geometry sites Dy1 with C4 symmetry (ϕ1=23°) and Dy2 with D4d symmetry (ϕ2=45°). In an Hdc of 1750 Oe and T range of 1.8–3.75 K, the quantum tunnelling of the magnetization was suppressed, and the direct process was enhanced. The effects of the coordination geometry on the spin relaxation phenomena are examined.

本文言語English
ページ(範囲)15522-15528
ページ数7
ジャーナルChemistry - A European Journal
24
58
DOI
出版ステータスPublished - 2018 10 17

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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