Guest-Switchable Multi-Step Spin Transitions in an Amine-Functionalized Metal-Organic Framework
Guest-Switchable Multi-Step Spin Transitions in an Amine-Functionalized Metal-Organic Framework
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胺官能化金属有机框架中的客体可切换多步自旋跃迁
DOI：
10.1002/anie.201708973
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发表时间：
2017-11-20
影响因子：
16.6
通讯作者：
Tong, Ming-Liang
中科院分区：
文献类型：
--
作者：
Liu, Wei;Peng, Yuan-Yuan;Tong, Ming-Liang
具有多阶自旋交叉（SCO）滞回特性的材料在高阶数据存储中具有潜在的应用价值。在这里，一个前所未有的滞后四步SCO行为的序列LSHS0.25LS0.75HS0.5LS0.5HS0.75LS0.25HS被发现在三维（3D）霍夫曼型金属有机框架（MOF），这是由磁性，差示扫描量热法，和晶体数据证明。进一步的实验涉及客体交换导致第一个可逆调制的四，二，和一步SCO行为，这为开发多步SCO材料提供了一个新的策略。
Materials with hysteretic multi-step spin-crossover (SCO) have potential application in high-order data storage. Here, an unprecedented hysteretic four-step SCO behavior with the sequence of LSHS0.25LS0.75HS0.5LS0.5 HS0.75LS0.25HS is found in a three-dimensional (3D) Hofmann-type metal-organic framework (MOF), which is evidenced by magnetic, differential scanning calorimetry, and crystal data. Further experiments involving guest exchange leads to the first reversible modulation of four-, two-, and one-stepped SCO behaviors, which provides a new strategy for developing multi-step SCO materials.