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Crystal structure and electrical resistance property of Rb_0.21(H₂O) _y WS₂.

ABSTRACT: Rb_0.21(H₂O) _y WS₂, rubidium hydrate di-thio-tungstate, is a new quasi two-dimensional sulfide. Its crystal structure consists of ordered WS₂ layers, separated by disordered Rb⁺ ions and water mol-ecules. All atomic sites are located on mirror planes. The WS₂ layers are composed of edge-sharing [WS₆] octa-hedra 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 Rb_0.21(H₂O) _y WS₂ is semiconducting between 80-300?K.

SUBMITTER: Mao Y

PROVIDER: S-EPMC6659325 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Crystal structure and electrical resistance property of Rb0.21(H2O) y WS2.

Mao Yuanlv Y Fang Yuqiang Y Wang Dong D Bu Kejun K Wang Sishun S Zhao Wei W Huang Fuqiang F

Acta crystallographica. Section E, Crystallographic communications 20190611 Pt 7

Rb0.21(H2O) y WS2, rubidium hydrate di-thio-tungstate, is a new quasi two-dimensional sulfide. Its crystal structure consists of ordered WS2 layers, separated by disordered Rb+ ions and water mol-ecules. All atomic sites are located on mirror planes. The WS2 layers are composed of edge-sharing [WS6] octa-hedra and extend parallel to (001). The presence of structural water was revealed by thermogravimet ...[more]

PMID: 31392007

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