Electrochemical Development of Magnetic Long-Range Correlations with Tc = 128 K in a Tetraoxolene-Bridged Fe-Based Framework
Electrochemical Development of Magnetic Long-Range Correlations with Tc = 128 K in a Tetraoxolene-Bridged Fe-Based Framework
复制标题
四氧乙烯桥铁基框架中 Tc = 128 K 的磁长程相关性的电化学发展
DOI：
10.1016/j.jmmm.2019.165818
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
and Hitoshi Miyasaka
中科院分区：
文献类型：
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作者：
Jian Chen;Kouji Taniguchi;Yoshihiro Sekine;and Hitoshi Miyasaka
与2,5-二氯-3,6-二羟基-1,4-苯并醌酸盐（Cl2Ann−），（h30o）2(phz)3[Fe2(Cl2An)3] （phz = phenazine）组成的铁基二维蜂窝骨架的框架边缘部分产生顺磁自由基（Cl2Anradical dot3−），使网络在相对高的磁相变温度（Tc）为128 K的情况下形成远程磁相关。原始化合物是顺磁体，具有抗磁性Cl2An2 -连接体，可以显著分离顺磁性离子（S= 2），其中[(h30)2(phz)3]2+阳离子位于层状框架之间。合成后的电子掺杂，即固态还原，使用锂离子电池（LIB）体系，最终生成（Li+）3(h30o +)2(phz)3[(Fe2+)2(Cl2Anradical dot3−)3]，表现出剧烈的磁性变化。
The generation of the paramagnetic radical (Cl2Anradical dot3−) in the framework-edge moieties of an Fe-based two-dimensional honeycomb framework with 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinonate (Cl2Ann−), (H3O)2(phz)3[Fe2(Cl2An)3] (phz = phenazine), allowed the formation of long-range magnetic correlations over the network with a relative high magnetic phase transition temperature (Tc) of 128 K. The original compound is a paramagnet with a diamagnetic Cl2An2−linker that significantly separates paramagnetic FeIIions (S= 2), where the [(H3O)2(phz)3]2+cation is located between layered frameworks. Post-synthetic electron-doping, i.e., reduction in the solid state, using a lithium-ion battery (LIB) system, finally produced (Li+)3(H3O+)2(phz)3[(Fe2+)2(Cl2Anradical dot3−)3], which demonstrated a drastic magnetic change.