Construction of a novel topological frustrated system: A frustrated metal cluster in a helical space

Ryuta Ishikawa, Motohiro Nakano, Akira Fuyuhiro, Tetsuya Takeuchi, Shojiro Kimura, Takanari Kashiwagi, Masayuki Hagiwara, Koichi Kindo, Sumio Kaizaki, Satoshi Kawata

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

A novel topological frustrated pentanuclear cluster helicate [(Cu II(μ-L)3}2Cu(μ3-OH)] 3+ (L=3, 5bis(2-pyridyl)pyrazolate) has been synthesized and characterized. This cluster has a helical arrangement of ligands around the central metal core. Dzyaloshinsky-Moriya interactions are essential components to observe a gradual magnetization and forbidden transitions of high-field/multi-frequency (HF/MF)-ESR. The origin of the magnetic anisotropy of this compound is influenced by its helical spin structure, and consequently, the Cu5-cluster helicate introduces a unique magnetic anisotropy. This observation is a direct evidence of the topological part of the new spin phase in a magnetic system.

Original languageEnglish
Pages (from-to)11139-11144
Number of pages6
JournalChemistry - A European Journal
Volume16
Issue number36
DOIs
Publication statusPublished - 2010 Sep 24
Externally publishedYes

Keywords

  • Cluster compounds
  • Helical structures
  • Magnetic anisotropy
  • Spin frustration

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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    Ishikawa, R., Nakano, M., Fuyuhiro, A., Takeuchi, T., Kimura, S., Kashiwagi, T., Hagiwara, M., Kindo, K., Kaizaki, S., & Kawata, S. (2010). Construction of a novel topological frustrated system: A frustrated metal cluster in a helical space. Chemistry - A European Journal, 16(36), 11139-11144. https://doi.org/10.1002/chem.201000676