Progress in magnetic couple system of nitroxidemetal complexes |
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Authors: | Baiwang Sun Daizheng Liao Zonghui Jiang Genglin Wang |
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Affiliation: | SUN Baiwang, LIAO Daizheng, JIANG Zonghuiand WANG Genglin * Department of Chemistry, Nankai University, Tianjin 300071, China. * Corresponding author. |
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Abstract: | Metal_radical method is an effective approach to synthesizing magnetic molecular materials. With the development in decades, the study of nitroxide_metal complexes has made great progress in model, theoretical treatment and design of molecules. Several mechanisms of the metal_radical magnetic coupling are discussed. Molecular magnetic project of nitroxide_metal complexes has made fruitful achievements, but crystal magnetic project is difficult to be controlled, and it is a challenge to chemists. The studies on nitronyl nitroxide_metal complexes are summarized. At present, there are three major approaches to increasing the T c of the metal_radical compounds: (ⅰ) Searching for nitronyl nitroxide ligands that can yield 3_D ferro_ or ferrimagnetic structures; (ⅱ) decorating the structure of radicals with the aim to enhance the coordinate capability of radicals; (ⅲ) grafting polynitroxide radicals as a versatile bridge. The third approach, namely searching for polynitroxide ligand, will serve as a hopeful strategy for exploring higher T c radical molecule_based magnets. |
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Keywords: | nitronyl nitroxides metal complex magnetic coupling. |
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