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

doi:10.1002/chem.201000676

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 journal › Article › peer-review

38 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 language	English
Pages (from-to)	11139-11144
Number of pages	6
Journal	Chemistry - A European Journal
Volume	16
Issue number	36
DOIs	https://doi.org/10.1002/chem.201000676
Publication status	Published - 2010 Sep 24
Externally published	Yes

Keywords

Cluster compounds
Helical structures
Magnetic anisotropy
Spin frustration

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/chem.201000676

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Construction of a novel topological frustrated system : A frustrated metal cluster in a helical space. / Ishikawa, Ryuta; Nakano, Motohiro; Fuyuhiro, Akira; Takeuchi, Tetsuya; Kimura, Shojiro; Kashiwagi, Takanari; Hagiwara, Masayuki; Kindo, Koichi; Kaizaki, Sumio; Kawata, Satoshi.

In: Chemistry - A European Journal, Vol. 16, No. 36, 24.09.2010, p. 11139-11144.

Research output: Contribution to journal › Article › peer-review

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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.",

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

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AU - Ishikawa, Ryuta

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AU - Fuyuhiro, Akira

AU - Takeuchi, Tetsuya

AU - Kimura, Shojiro

AU - Kashiwagi, Takanari

AU - Hagiwara, Masayuki

AU - Kindo, Koichi

AU - Kaizaki, Sumio

AU - Kawata, Satoshi

PY - 2010/9/24

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AB - 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.

KW - Cluster compounds

KW - Helical structures

KW - Magnetic anisotropy

KW - Spin frustration

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

Abstract

Keywords

ASJC Scopus subject areas

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