对于分层的[Fe(II) ((TCNE*-) ((NCMe) 2) +[Fe ((III) Cl4]- (TCNE =四乙烯) 观察到的磁性排序 (Tc = 90 K)
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Updated: Jul 18, 2026
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Chemical Vapor Deposition of an Organic Magnet, Vanadium Tetracyanoethylene
Published on: July 3, 2015
Konstantin I Pokhodnya1, Michael Bonner, Jae-Hyuk Her
1Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850, USA.
Journal of the American Chemical Society
|December 7, 2006
概括
一种新的铁基磁铁[Fe(TCNE) ((NCMe) ][FeCl4],具有低于90K的铁磁性. 这种金属-TCNE磁铁具有直接的金属-链体结合和独特的旋转合单元.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 磁力学 磁力学 是一种
背景情况:
- 金属有机框架 (MOF) 和协调聚合物因其磁性特性而被广泛研究.
- 四乙烯 (TCNE) 是一种用于合成分子磁体的多功能连接物.
- 了解结构属性关系对于设计新型磁性材料至关重要.
研究的目的:
- 为了合成和表征一种新的金属-TCNE化合物.
- 研究合成材料的磁性排序和结构性质.
- 探索这种化合物作为一种新型铁磁材料的潜力.
主要方法:
- 从TCNE和FeCl2的反应中分离[Fe(TCNE) ((NCMe) 2) [FeCl4]2.
- 化合物的结构确定.
- 测量磁感应度以确定排序温度和磁场行为.
主要成果:
- 化合物[Fe{TCNE}{NCMe}2][FeCl4]已成功合成并进行结构特征.
- 它表现出低于90K的铁磁顺序.
- 该结构采用了一种新的平面mu4-[TCNE]*-旋转合单元,与四个Fe(II) 离子结合,具有直接的金属结合体结合.
结论:
- [Fe ((TCNE)) ((NCMe)) [2][FeCl4]代表了第一个金属-TCNE磁铁,具有确定的结构和直接的金属结合体结合.
- 这种化合物是新一类铁磁体的初始成员.
- 该材料显示了显著的强制场 (1730 Oe) 和残余磁化 (7500 emuK/mol在50 K).
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