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Single-Step Synthesis of An Ideal Chain Antiferromagnet [H2(4,4'-bipyridyl)](H3O)2Fe2F10 with Spin S = 5/2.
Wang, Yanhong; Dou, Yaling; Takastu, Hiroshi; Wang, Tao; Koo, Hyun-Joo; Whangbo, Myung-Hwan; Kageyama, Hiroshi; Lu, Hongcheng.
Afiliación
  • Wang Y; Huazhong University of Science and Technology, School of Chemistry and Chemical Engineering, CHINA.
  • Dou Y; Huazhong University of Science and Technology, School of Chemistry and Chemical Engineering, CHINA.
  • Takastu H; Kyoto University, Graduate School of Engineering, JAPAN.
  • Wang T; Northwestern Polytechnical University, School of Materials Science and Engineering, CHINA.
  • Koo HJ; Kyung Hee University, Department of Chemistry and Research Institute for Basic Sciences, KOREA, REPUBLIC OF.
  • Whangbo MH; North Carolina State University, Department of Chemistry, UNITED STATES OF AMERICA.
  • Kageyama H; Kyoto University, Graduate School of Engineering, JAPAN.
  • Lu H; Huazhong University of Science and Technology, School of Chemistry and Chemical Engineering, 1037 Luoyudonglu Road, 430074, Wuhan, CHINA.
Angew Chem Int Ed Engl ; : e202415700, 2024 Sep 09.
Article en En | MEDLINE | ID: mdl-39248441
ABSTRACT
One-dimensional (1D) magnets are of great interest owing to their intriguing quantum phenomena and potential application in quantum computing. We successfully synthesized an ideal antiferromagnetic spin S = 5/2 chain compound [H2(4,4'-bpy)](H3O)2Fe2F10 (4,4'-bpy = 4,4'-bipyridyl) 1, using a single-step low-temperature hydrothermal method under conditions that favors the protonation of the bulky bidentate ligand 4,4'-bpy. Compound 1 consists of well-separated (Fe3+-F-)¥ chains with a large Fe-F-Fe angle of 174.8°. Both magnetic susceptibility and specific heat measurements show that 1 does not undergo a magnetic long-range ordering down to 0.5 K, despite the strong Fe-F-Fe intrachain spin exchange J with J/kB = -16.2(1) K. This indicates a negligibly weak interchain spin exchange J'. The J'/J value estimated for 1 is extremely small (< 2.8×10-6), smaller than those reported for all other S = 5/2 chain magnets. Our hydrothermal synthesis incorporates both [H2(4,4'-bpy)]2+ and (H3O)+ cations into the crystal lattice with numerous hydrogen bonds, hence effectively separating the (Fe3+-F-)¥ spin chains. This single-step hydrothermal synthesis under conditions favoring the protonation of bulky bidentate ligands offers an effective synthetic strategy to prepare well-separated 1D spin chain systems of magnetic ions with various spin values.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania