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学科主题: Chemistry ; Physics
题名: Dipotassium sodium niobium dioxide tetrafluoride, K2NaNbO2F4, crystal structure and characterization
作者: Li Junjie; Pan Shilie; Tian Xuelin; Zhang Fangfang; Zhao Wenwu
通讯作者: Pan, SL
关键词: Crystal growth ; X-ray diffraction ; Chemical synthesis ; Infrared spectroscopy
刊名: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
发表日期: 2012
DOI: 10.1016/j.jpcs.2011.10.024
卷: 73, 期:1, 页:136-138
收录类别: SCI
资助者: Chinese Academy of Sciences KJCX2-EW-H03-03; National Natural Science Foundation of China 50802110, 21001114; Xinjiang Uygur Autonomous Region of China 200816120; Scientific Research Program of Urumqi of China G09212001
摘要: The paper presents a new data on the crystal structure of K2NaNbO2F4. Single crystals of K2NaNbO2F4, were obtained from the system of KF-NaF-Nb2O5. The compound is cubic, space group Fm (3) over barm (No. 225), and the unit cell parameters are alpha=8.4726(4) angstrom, Z=4, Volume=608.21(5) angstrom(3). The structure was solved by the direct methods and refined to the reliability factors R-1 =0.0116 (wR(2)=0.0302). Its structure can be described as three-dimensional frameworks formed of (0 1 0) Na2Nb2O4F8infinity layers stacked along b axis. In the framework, niobium, oxygen, fluorine atoms form a rare NbO2F4(3-) anion group in an anhydrous solid state environment. The IR spectrum further confirmed the presence of NbO2 and NbF4 groups in the structure. The thermal analysis suggests that K2NaNbO2F4 is an incongruently melting compound.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/2729
Appears in Collections:新疆维吾尔自治区电子信息材料与器件重点实验室_期刊论文

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作者单位: Chinese Acad Sci, Xinjiang Key Lab Elect Informat Mat & Devices, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Li Junjie,Pan Shilie,Tian Xuelin,et al. Dipotassium sodium niobium dioxide tetrafluoride, K2NaNbO2F4, crystal structure and characterization[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2012,73(1):136-138.
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