Distinctive Magnetic Relaxation Behavior of Ln(III) Single-Molecule Magnets with a Conducting Organic π Donor System

It is expected that single-molecule magnets (SMMs) containing Lanthanoids play an important role in high-density magnetic devices. In this work, we synthesized new conductive Ln(III) SMMs, (TMTSF)4[Ln(NCS)6](CH3CN)2(CH2Cl2)0.5 (H2O)0.5 (TMTSF = (tetramethyltetraselenafulvalene), Ln(III) = Dy (1) and Tb (2)), which have organic TMTSF π donors as the conducting part. The crystal structure has high symmetry, and lanthanoid complexes form a lattice-like structure with the TMTSF donor. [Ln(NCS)6]3– forms a distorted octahedron due to S···Se contact with the TMTSF. The compound undergoes fast magnetic relaxation in the low-temperature region, and its relaxation time τ is almost independent of the temperature. The change in rate is nearly linear. The compounds show semiconductive behavior and a weak magnetoresistance effect at ambient and high pressure at the low temperatures.

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Publication Details

Journal
Crystal Growth & Design
Published
2025-04-07
DOI
https://doi.org/10.1021/acs.cgd.5c00120
Citations
2
Primary Topic
Magnetism in coordination complexes
Type
article
Field-Weighted Citation Impact
0.85
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article

Distinctive Magnetic Relaxation Behavior of Ln(III) Single-Molecule Magnets with a Conducting Organic π Donor System

Brian K. Breedlove, Yongbing Shen, Qingyun Wan, Ryuta Ishikawa et al.
2 citations
Crystal Growth & Design
Magnetism in coordination complexes
0.85
article

Distinctive Magnetic Relaxation Behavior of Ln(III) Single-Molecule Magnets with a Conducting Organic π Donor System

Brian K. Breedlove, Yongbing Shen, Qingyun Wan, Ryuta Ishikawa, Hiroshi Ito, Masanori Wakizaka, Hiroaki Iguchi, Yoji Horii, Nobuto Funakoshi, Shinya Takaishi, Haitao Zhang
article en
2 citations

Abstract

It is expected that single-molecule magnets (SMMs) containing Lanthanoids play an important role in high-density magnetic devices. In this work, we synthesized new conductive Ln(III) SMMs, (TMTSF)4[Ln(NCS)6](CH3CN)2(CH2Cl2)0.5 (H2O)0.5 (TMTSF = (tetramethyltetraselenafulvalene), Ln(III) = Dy (1) and Tb (2)), which have organic TMTSF π donors as the conducting part. The crystal structure has high symmetry, and lanthanoid complexes form a lattice-like structure with the TMTSF donor. [Ln(NCS)6]3– forms a distorted octahedron due to S···Se contact with the TMTSF. The compound undergoes fast magnetic relaxation in the low-temperature region, and its relaxation time τ is almost independent of the temperature. The change in rate is nearly linear. The compounds show semiconductive behavior and a weak magnetoresistance effect at ambient and high pressure at the low temperatures.

Crystal Growth & DesignVol. 25(8)
Chitose Institute of Science and Technology (JP), Tongji University (CN), Chinese University of Hong Kong (HK), Tohoku University (JP), Fukuoka University (JP), Nagoya University (JP), The University of Tokyo (JP), Nara Women's University (JP)
Openalex Percentile: Top 29%
Magnetism in coordination complexes
0.85
DOIOpen Access PDFOpenAlex
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