Synthesis, crystal structures and physical properties of A(x)(H2O)(y)MoS2(A = K, Rb, Cs)

doi:10.1016/j.jssc.2019.120937

	Synthesis, crystal structures and physical properties of A(x)(H2O)(y)MoS2(A = K, Rb, Cs)
	Mao, Yuanlv; Fang, Yuqiang; Pan, Jie; Wang, Dong; Bu, Kejun; Che, Xiangli; Zhao, Wei; Huang, Fuqiang
刊名	JOURNAL OF SOLID STATE CHEMISTRY
	2019-11-01
卷号	279
关键词	Quasi two-dimensional structure New compounds Physical properties
ISSN号	0022-4596
DOI	10.1016/j.jssc.2019.120937
文献子类	Article
英文摘要	Recently, metastable polymorphs of MoS2 (1T, 1T', 1T''') have raised much attention due to their rich crystal structures and intriguing physicochemical properties. They are often derived from alkali metal intercalated compounds of MoS2, A(x)(H2O)(y)MoS2 (A = alkali metal), by topotactic reaction. In order to make clear the deintercalation process, it is demanded to elucidate the compositions and crystal structures of A(x)(H2O)(y)MoS2. Here, we report the synthesis of high-quality A(x)(H2O)(y)MoS2 (A = K, Rb, Cs) single crystals, determine their crystal structures and investigate the physical properties. The three new quasi two-dimensional compounds crystallize in the identical monoclinic P2(1)/m (No.11) space group determined by single crystal X-ray diffraction. Their structures consist of ordered MoS2 layers, which are intercalated by disordered hydrated A' cations. Each layer contains edge-sharing [MoS6] octahedral, forming one-dimensional Mo zigzag chains along the b-axis. The resistivity of A(x)(H2O)(y)MoS2 increases with the decrease of temperature, which is the typical semiconducting behavior. The apparent difference in the resistivity of the three compounds is mainly related to the number of electrons injected by alkali metal atoms. Magnetic measurements indicated that the three compounds are dominantly paramagnetic accompanied by weak ferromagnetic contributions.
WOS研究方向	Chemistry
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26735]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Mao, Yuanlv,Fang, Yuqiang,Pan, Jie,et al. Synthesis, crystal structures and physical properties of A(x)(H2O)(y)MoS2(A = K, Rb, Cs)[J]. JOURNAL OF SOLID STATE CHEMISTRY,2019,279.
APA	Mao, Yuanlv.,Fang, Yuqiang.,Pan, Jie.,Wang, Dong.,Bu, Kejun.,...&Huang, Fuqiang.(2019).Synthesis, crystal structures and physical properties of A(x)(H2O)(y)MoS2(A = K, Rb, Cs).JOURNAL OF SOLID STATE CHEMISTRY,279.
MLA	Mao, Yuanlv,et al."Synthesis, crystal structures and physical properties of A(x)(H2O)(y)MoS2(A = K, Rb, Cs)".JOURNAL OF SOLID STATE CHEMISTRY 279(2019).