Regular Double-Cube [Cr7S8](5 ) in [Cr7S8(SCN)(4)(NH3)(14)](HS): An Ideal Model Compound for Investigation of Geometrical Magnetic Frustration
Regular Double-Cube [Cr7S8](5 ) in [Cr7S8(SCN)(4)(NH3)(14)](HS): An Ideal Model Compound for Investigation of Geometrical Magnetic Frustration
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[Cr7S8(SCN)(4)(NH3)(14)](HS) 中的正双立方体 [Cr7S8](5 )：研究几何磁阻的理想模型化合物
DOI：
10.1021/acs.cgd.9b00984
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发表时间：
2019
影响因子：
3.8
通讯作者：
Yang Tao
中科院分区：
文献类型：
--
作者：
Yang Jia;Jiang Pengfei;Zhou Zhengyang;Yue Mufei;Yang Dingfeng;Chen Shijian;Yang Tao
采用水热法合成了含[Cr 7S 8]5+双立方结构的无机化合物[Cr 7S 8（SCN）4（NH3）14]（SH），并用单晶衍射对其结构进行了表征。尽管迄今为止已经报道了几种过渡金属基的M7 X8双立方型化合物，但[Cr 7S 8]5+双立方型化合物是其中最规则的一种，它具有很强的反铁磁几何阻挫（f= 1.25）。|θcw|/TN> 33）。由于[Cr 7S 8]5+单元被N-给体配体很好地分离，[Cr 7S 8（SCN）4（NH3）14]（SH）在2 K以上不存在长程和短程磁有序，因此，这是研究几何磁阻挫的理想模型化合物。
The inorganic compound [Cr7S8(SCN)4(NH3)14](SH) containing the [Cr7S8]5+double-cube was synthesized by the hydrothermal method and structurally characterized by single crystal diffraction. Despite the fact that several transition metal basedM7X8double-cube-type compounds have been reported up to now, here the [Cr7S8]5+double-cube is the most regular one and it has a strong antiferromagnetic geometric frustration (f= |θcw|/TN> 33). Owing to the good separation of [Cr7S8]5+units by the N-donor ligands, both long- and short-range magnetic order were absent in [Cr7S8(SCN)4(NH3)14](SH) above 2 K; therefore, this is an ideal model compound for the investigation of geometrically magnetic frustration.