{GdIII7} and {GdIII14} Cluster Formation Based on a Rhodamine 6G Ligand with a Magnetocaloric Effect.

Miao, Lin; Liu, Cai-Ming; Kou, Hui-Zhong

{Gd^III₇} and {Gd^III₁₄} Cluster Formation Based on a Rhodamine 6G Ligand with a Magnetocaloric Effect.

Miao, Lin; Liu, Cai-Ming; Kou, Hui-Zhong.

Afiliación

Miao L; Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China.
Liu CM; Beijing National Laboratory for Molecular Sciences, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Kou HZ; Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China.

Molecules ; 29(2)2024 Jan 12.

Article en En | MEDLINE | ID: mdl-38257302

ABSTRACT

ABSTRACT

Heptanuclear {GdIII7} (complex 1) and tetradecanuclear {GdIII14} (complex 2) were synthesized using the rhodamine 6G ligand HL (rhodamine 6G salicylaldehyde hydrazone) and characterized. Complex 1 has a rare disc-shaped structure, where the central Gd ion is connected to the six peripheral GdIII ions via CH3O-/µ3-OH- bridges. Complex 2 has an unexpected three-layer double sandwich structure with a rare µ6-O2- ion in the center of the cluster. Magnetic studies revealed that complex 1 exhibits a magnetic entropy change of 17.4 J kg-1 K-1 at 3 K and 5 T. On the other hand, complex 2 shows a higher magnetic entropy change of 22.3 J kg-1 K-1 at 2 K and 5 T.

Palabras clave

lanthanide oxygen cluster; magnetic refrigerant materials; magnetocaloric effect; rhodamine ligand

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza

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