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金属—自由基分子基铁磁体的设计合成进展 预览

Design and Synthesis of the Metal-Radical Molecular-Based Magnets
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摘要 金属-自由基分子基铁磁体的设计和合成,是近年发展起来的新课题,本文介绍这一课题的研究现状与发展趋势。 one of the main challenges in the field of molecular materials is the design of molecular basedferromagnets exhibiting a spontaneous magnetication below a critical temperature Tc. The so-called metal-radical approach has been successfully employed in the synthesis of molecular basedferromagnets. It consists in the use of stable organic radicals such as the nitronyl nitroxides, 2-R-4, 4, 5, 5-tetramethyl-4, 5-dihydro-1H-imidazolyl-1-oxyl 3-oxide (NITR) as ligands for transi-tion-metal ions and Gd(Ⅲ) ion, which can thus be connected in infinite structures. The individ-ual metal-radical coupling can be ferro-, ferri-or antiferromagnetic and in this way one-, two- orthree-dimensional ferro- and ferrimagnets were obtained. Here we wish to conclude recentachievements in this area and try to predict the direction of researches.
作者 刘欣 LIU Xin; LIAO Dai-Zheng; JIANG Zong-Hui; WANG Geng-Lin(Department of Chemistry, Nankai University, Tninjin, 300071)
出处 《结构化学》 SCIE CAS CSCD 1998年第3期 181-186,共6页 Chinese Journal of Structural Chemistry
关键词 低维磁性材料 三维体系 铁磁体 分子基铁磁体 nitronyl nitroxide radical, low-dimensional magnetic materials, three-dimensional magnets
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