Two Gd 2 compounds constructed by 8-hydroxyquinoline Schiff base ligands: Synthesis, structure, and magnetic refrigeration
| Autor: | Meng Fang, Ming Fang, Wen-Min Wang, Xiao-Fen Guan, Cai-Feng Zhang, Zhi-Lei Wu, Xiao-Di Liu |
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| Rok vydání: | 2017 |
| Předmět: |
Schiff base
Stereochemistry 8-Hydroxyquinoline 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Crystallography chemistry Materials Chemistry Magnetic refrigeration Physical and Theoretical Chemistry Magnetic study 0210 nano-technology |
| Zdroj: | Inorganic Chemistry Communications. 79:8-11 |
| ISSN: | 1387-7003 |
| DOI: | 10.1016/j.inoche.2017.03.014 |
| Popis: | Two new Gd2 compounds having formulae, [Gd2(hfac)4(L1)2] (1) and [Gd2(hfac)4(L2)2] (2) (hfac = hexafluoroacetylacetonate, HL1 = 2-[4-methylaniline-imino]methyl]-8-hydroxyquinoline and HL2 = 2-[(3,4-dimethylaniline)-imino]methyl]-8-hydroxyquinoline), have been successfully synthesized via applying two different 8-hydroxyquinoline Schiff base ligands, and further characterized by crystallography. Structural analysis shows that both of 1 and 2 are phenoxo-O bridged dinuclear complexes. The magnetic study reveal that 1 and 2 display cryogenic magnetic refrigeration properties with maximum − ΔSm = 17.66 J kg− 1 K− 1 at 2 K and 7 T for 1 and − ΔSm = 14.81 J kg− 1 K− 1 at 3 K and 7 T for 2. |
| Databáze: | OpenAIRE |
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