Dodecanuclear [CuII6GdIII6] Nanoclusters as Magnetic Refrigerants
| Autor: | Marco Affronte, Marius Andruh, Augustin M. Madalan, Alina S. Dinca, Alberto Ghirri |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Ligand
Exchange interaction Inorganic chemistry Ion Nanoclusters Inorganic Chemistry chemistry.chemical_compound Crystallography Hydroxylamine Ferromagnetism chemistry synthesis and characterization of new molecular materials magnetocalori effect Magnetic refrigeration Physical and Theoretical Chemistry Ground state |
| Zdroj: | Inorganic Chemistry. 51:3935-3937 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/ic3001762 |
| Popis: | A novel dodecanuclear complex, [{(HL)(L)(DMF)Cu(II)Gd(III)(DMF)(H(2)O)}(6)]·6DMF (1; DMF = N,N-dimethylformamide), has been obtained using the ligand resulting from the condensation of 3-formylsalicylic acid with hydroxylamine (H(3)L). The exchange interaction between the phenoxo-bridged Cu(II) and Gd(III) ions is weak ferromagnetic (J = +1.01 cm(-1)). The combination of a high-spin ground state with small anisotropy leads to a significant magnetocaloric effect [-ΔS(m)(0-7 T) = 23.5 J K g(-1) K(-1) at ∼2 K]. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|