可以调的SIM属性在3D无基兰坦化MOF家族中的属性
Noemi Monni1,2, Sourav Dey1, Víctor García-López1
1Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Catedrático José Beltrán 2 46980 Paterna Spain miguel.clemente@uv.es.
Inorganic chemistry frontiers
|September 12, 2024
概括
使用ditrazolyl-dihydroxybenzoquinone连接器和兰坦化离子的新协调聚合物表现出单离子磁铁 (SIM) 行为. 基于terbium的聚合物 (2b) 显示出最好的SIM特性,为磁性材料设计提供了洞察力.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 磁力学 磁力学 是一种
背景情况:
- 兰化物离子对于开发先进的磁性材料至关重要.
- 酸连接器为金属离子提供了多功能协调环境.
- 单离子磁铁 (SIM) 对高密度数据存储和量子计算具有前景.
研究的目的:
- 合成和表征基于兰他尼德的新型协调聚合物.
- 为了研究磁性特性,特别是单离子磁铁 (SIM) 的行为.
- 探索结构多态和磁性性能之间的关系.
主要方法:
- 兰化物-亚尼拉托协调聚合物的溶热合成.
- 用X射线衍射测定多态体的结构.
- 测量磁感应度以评估SIM行为.
- 最初的CASSCF计算以支持理论理解.
主要成果:
- 使用DyIII,TbIII和HoIII离子获得了两系列的多态分子,其公式为[Ln2(trz2An) 3(H2O) 4·nH2O.
- DyIII (1a,1b) 和TbIII (2b) 协调网络/聚合物表现出单离子磁铁 (SIM) 的行为.
- 多态 1-3a 显示可逆结构灵活性,在 2D 和 3D 框架之间进行过渡.
- 基于TbIII的聚合物 (2b) 是第一个基于酸盐的协调聚合物,显示SIM行为,并且在研究的多态体中显示出优异的磁性.
结论:
- 合成的兰坦化协调聚合物表现出有希望的单离子磁铁 (SIM) 特性.
- 结构多态性显著影响这些材料的磁性行为.
- 基于的聚合物 (2b) 代表了基于酸盐的SIM材料的重大进步.
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