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Crystal structure and electrical resistance property of Rb0.21(H2O)yWS2

机译:Rb0.21(H2O)yWS2的晶体结构和电阻特性

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摘要

Rb0.21(H2O)yWS2, rubidium hydrate di­thio­tungstate, is a new quasi two-dimensional sulfide. Its crystal structure consists of ordered WS2 layers, separated by disordered Rb+ ions and water mol­ecules. All atomic sites are located on mirror planes. The WS2 layers are composed of edge-sharing [WS6] octa­hedra and extend parallel to (001). The presence of structural water was revealed by thermogravimetry, but the position and exact amount could not be determined in the present study. The temperature dependence of the electrical resistance indicates that Rb0.21(H2O)yWS2 is semiconducting between 80–300 K.
机译:Rb0.21(H2O)yWS2,水合二硫代钨酸rub,是一种新的准二维硫化物。它的晶体结构由有序的WS2层组成,被无序的Rb + 离子和水分子隔开。所有原子位点都位于镜平面上。 WS2层由边缘共享[WS6]八面体组成,并平行于(001)延伸。通过热重分析揭示了结构水的存在,但在本研究中无法确定其位置和确切数量。电阻的温度依赖性表明Rb0.21(H2O)yWS2在80-300 K之间为半导体。

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