两例具有大磁滞的氰根桥联{FeⅢ2NiⅡ}单链磁体 |
Two cyano-bridged {FeⅢ2NiⅡ} single-chain magnets with huge magnetic hysteresis |
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摘要: 我们利用具有不同对称性的同分异构体,通过改变分子间氢键网络,操控单链磁体行为,成功合成了2例化合物:[NiⅡ(L1)][FeⅢ(Tp)(CN)3]2·3.5H2O (1)和[NiⅡ(L2)][FeⅢ(Tp)(CN)3]2·3H2O (2),其中Tp=hydrotris (pyrazolyl) borate,L1=3,4-bis (1H-imid-azol-1-yl) thiophen,L2=1,2-bis (1H-imidazol-1-yl) thiophen)。磁性研究表明,1和2表现为具有不同矫顽场的单链磁体行为。1的矫顽场为8.41 kOe,而2的矫顽场为3.84 kOe。 |
关键词: 单链磁体 氰基桥联 氢键 矫顽场 |
基金项目: 国家自然科学基金(No.22103009,22025101,22222103,22173015,21871039,21801037,91961114,22071017)资助。 |
Abstract: Herein, two compounds[NiⅡ (L1)] [FeⅢ (Tp)(CN)3]2·3.5H2O (1) and[NiⅡ (L2)] [FeⅢ (Tp)(CN)3]2·3H2O (2), where Tp=hydrotris(pyrazolyl) borate, L1=3,4-bis(1H-imidazol-1-yl) thiophen, L2=1,2-bis(1H-imidazol-1-yl) thiophen, were successfully synthesized by using isomers with different symmetries to change the intermolecular hydrogen bonding network and manipulate the single-chain magnet behavior. The magnetic performance showed that 1 and 2 displayed single-chain magnet behavior with huge coercive fields of 8.41 and 3.84 kOe, respectively. |
Keywords: single-chain magnets cyano-bridged hydrogen bonding coercive fields |
投稿时间:2023-04-01 修订日期:2023-05-19 |
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管雅慧,赵亮,姚念涛,Hiroki Oshio,刘涛.两例具有大磁滞的氰根桥联{FeⅢ2NiⅡ}单链磁体[J].无机化学学报,2023,39(9):1775-1781. |
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Support information: 相关附件: 230117_supporting_informantion_修改稿_230117.doc |
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