基于化普鲁士蓝色类型的阴离子适应性结构:应用粉末衍射数据来解决复杂的,前所未有的固态度和新的结构类型
Joel S Miller1, Peter W Stephens2
1Department of Chemistry, 315 S. 1400 E. RM 2124, University of Utah, Salt Lake City, Utah, 84112-0850, USA.
Chemistry (Weinheim an der Bergstrasse, Germany)
|August 12, 2023
概括
本研究审查了创建新型二维和三维扩展结构化化合物的研究. 阴子选择影响结构和磁性,导致具有可调节磁性订制温度的多种材料.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学
- 固态化学 固态化学
背景情况:
- (II) 化物化合物形成了具有可调节的固态度的延伸结构.
- 和四基酸盐 (A+) 在决定结构多样性方面发挥着至关重要的作用.
研究的目的:
- 审查一大家族的二维和三维扩展结构化化合物的合成和表征.
- 调查阴离子类型 (A+) 对形成的晶体结构和磁性质的影响.
主要方法:
- 在无氧条件下合成A_m Mn_n (CN)_(m+2n) 化合物.
- 使用粉末衍射来确定晶体结构的表征.
- 分析磁性特性,包括合和排序温度.
主要成果:
- 形成了各种体质测量法 (例如,AMn{II}3{CN}7 ,A2Mn{II}3{CN}8 ,A2Mn{II}5{CN}12 ,A3Mn{II}5{CN}13 ,A2Mn{II}[Mn{II}{CN}6}) 已经形成了.
- 电离体大小和电荷决定了框架的灵活性,协调和固体测量,导致了对电离体有适应性的结构.
- 磁性合从抗铁磁性转向铁磁性顺序的过渡,顺序温度受到Mn-NC键角和离子相互作用的影响.
结论:
- 选择或四基离子对于控制化框架的结构和磁性行为至关重要.
- (II) 位点的不刚性和离子性质有助于结构适应性和磁性特性变化.
- 了解这些结构-属性关系使得设计新型磁性材料成为可能.
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