冰晶石型氟化物K<sub>3</sub>VF<sub>6</sub>的水热合成表征及磁学性质研究

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冰晶石型氟化物K₃VF₆的水热合成表征及磁学性质研究

基金项目:

吉林省科学技术发展基金（20100116，201105005）；高等学校博士学科点专项科研基金（SRFDP）（20100061120089）；无机合成与制备化学国家重点实验室开放基金（2011-01）；超硬材料国家重点实验室开放基金（201104）。

1. Yingkou University Zone, Yingkou 115000 China;
2. College of Physics/State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;
3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of chemistry, Jilin University, Changchun 130012, China

摘要: 采用水热法制备了冰晶石型氟化物K₃VF₆,通过粉末X-射线衍射、扫描电子显微镜、差热-热重分析等手段对化合物的性质进行了表征。化合物空间群为四方晶系。晶胞参数为a=13.570 Å,b=13.570 Å,c=8.671 Å,并对其磁学性质进行了研究。
- 水热合成 /
- 氟化物 /
- 冰晶石结构 /
- 磁学性质
Abstract: Cryolite-type fluoride K₃VF₆ was successfully synthesized under mild hydrothermal condition.The structure of the compound was determined by means of powder X-ray diffraction analysis.K₃VF₆ has a tetragonal cryolite-type structure with lattice parameter a=13.570 Å,b=13.570 Å,c=8.671 Å.The compound was further characterized by using scanning electron microscopy,thermogravimetric,differential thermal analysis.The variable temperature magnetic susceptibility of the compound was characterized and the result showed that the magnetic ordering was related to the crystallographic features and isolated magnetic unit with the temperature decreasing.
- Hydrothermal /
- Fluoride /
- Cryolite-type /
- Magnetic property

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