Facile Hydrazine-Hydrothermal Syntheses and Characterizations of Two Quaternary Thioarsenates(III): Two-Dimensional SrAg4 As2 S6 ⋅2 H2 O and One-Dimensional BaAgAsS3

Dongming Yan; Chang Liu; Wenxiang Chai; Xuerong Zheng; Luodong Zhang; Mingjia Zhi; Chunmei Zhou; Qichun Zhang; Yi Liu

doi:10.1002/asia.201600381

Facile Hydrazine-Hydrothermal Syntheses and Characterizations of Two Quaternary Thioarsenates(III): Two-Dimensional SrAg4 As2 S6 ⋅2 H2 O and One-Dimensional BaAgAsS3

Chem Asian J. 2016 Jun 21;11(12):1842-8. doi: 10.1002/asia.201600381. Epub 2016 May 27.

Authors

Dongming Yan¹, Chang Liu², Wenxiang Chai³, Xuerong Zheng², Luodong Zhang¹, Mingjia Zhi², Chunmei Zhou², Qichun Zhang^{4

5}, Yi Liu⁶

Affiliations

¹ School of Civil and Architectural Engineering, Zhejiang University, Hangzhou, 310058, China.
² State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
³ College of Materials Science and Engineering, China Jiliang University, Hangzhou, 310018, China.
⁴ School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore. [email protected].
⁵ Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore. [email protected].
⁶ State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China. [email protected].

PMID: 27123892
DOI: 10.1002/asia.201600381

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.

Keywords: column structure; hydrazine-hydrothermal; layer networks; semiconductors; thioarsenates(III).