High-pressure synthesis of a new copper thioborate, CuBS2
High-pressure synthesis of a new copper thioborate, CuBS2
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DOI：
10.1016/j.matlet.2006.09.018
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发表时间：
2007-05
影响因子：
3
通讯作者：
Takahiro Kajiki;Y. Hayashi;H. Takizawa
中科院分区：
文献类型：
--
作者：
Takahiro Kajiki;Y. Hayashi;H. Takizawa
在700~900℃、3 Gpa的高压/高温条件下合成了一种新的硫代硼酸铜CuBS2，用Rietveld粉末X射线衍射法对其晶体结构进行了表征。该化合物为四方晶胞(a=0.5044(1)nm，c=0.8947(2)nm，空间群：I-42d)，与CuMS2黄铜矿化合物(M：Al，Ga，In)同构。该化合物是由BS4-四面体组成的黄铜矿类型家族的第一个代表。由紫外-可见漫反射光谱估算出CuBS2的光学带隙为Eg=3.61 eV。
A new copper thioborate, CuBS2, was synthesized at high-pressure/temperature condition of 3 GPa and 700–900 °C. The crystal structure was refined by the Rietveld analysis of the powder X-ray diffraction data. The compound crystallizes into a tetragonal unit cell (a=0.5044(1) nm, c=0.8947(2) nm, space group: I-42d), isostructural with CuMS2chalcopyrite compounds (M: Al, Ga, and In). The compound is the first representative of the chalcopyrite-type family consisting of BS4-tetrahedra. From the UV–Vis diffuse reflectance spectrum, the optical band gap of CuBS2was estimated to be Eg=3.61 eV.