title: Facile Hydrazine-Hydrothermal Syntheses and Characterizations of Two Quaternary Thioarsenates(III): Two-Dimensional SrAg4 As2 S6 ⋅2 H2 O and One-Dimensional BaAgAsS3.
abstract: Two new quaternary thioarsenates(III), SrAg4 As2 S6 ⋅2 H2 O (1) and BaAgAsS3 (2), have been prepared through a hydrazine-hydrothermal method at low temperature. Compound 1 possesses a two-dimensional (2D) layer network, while compound 2 features a one-dimensional (1D) column structure. The detailed structure analysis indicates that Sr(2+) and Ba(2+) cations have different directing effects on the structures of thioarsenates(III). Both experimental and theoretical studies demonstrate that compounds 1 and 2 are narrow-gap semiconductors. Our success in synthesizing these two quaternary thioarsenates(III) proves that the hydrazine-hydrothermal technique is a powerful yet facile synthetic method for exploring new complex chalcogenides with diverse crystal structures and interesting physical properties.
authors.affiliation: School of Civil and Architectural Engineering, Zhejiang University, Hangzhou, 310058, China.
authors.forename: Dongming
authors.initials: D
authors.lastname: Yan
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
authors.forename: Chang
authors.initials: C
authors.lastname: Liu
authors.affiliation: College of Materials Science and Engineering, China Jiliang University, Hangzhou, 310018, China.
authors.forename: Wenxiang
authors.initials: W
authors.lastname: Chai
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
authors.forename: Xuerong
authors.initials: X
authors.lastname: Zheng
authors.affiliation: School of Civil and Architectural Engineering, Zhejiang University, Hangzhou, 310058, China.
authors.forename: Luodong
authors.initials: L
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
authors.forename: Mingjia
authors.initials: M
authors.lastname: Zhi
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
authors.forename: Chunmei
authors.initials: C
authors.lastname: Zhou
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore. qczhang@ntu.edu.sg.|Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore. qczhang@ntu.edu.sg.
authors.forename: Qichun
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China. liuyimse@zju.edu.cn.
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
keywords: column structure; hydrazine-hydrothermal; layer networks; semiconductors; thioarsenates(III)