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Updated: Sep 1, 2025

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
Pb3SBrI3: the first Pb-based chalcohalide with multiple halogens features a unique two-dimensional structure composed
Mei Yan1, Ru-Ling Tang1, Wenfeng Zhou1
1School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China. rltang@yzu.edu.cn.
Abstract:
Chalcohalides are attractive multifunctional candidates for new material due to their diverse crystal structures and the characteristics that come from the fusing of chalcogenides and halides. Here, we successfully synthesized a new Pb-based chalcohalide with multiple-halogens, namely, Pb3SBrI3, via a hydrothermal reaction using an organic chemical as the source of the sulfur. The Pb3SBrI3 exhibits unique neutral [Pb3SBrI3]∞ layers composed of rich Pb-centered units including PbS3 trigonal pyramids, PbSI4 square pyramids, and PbBr2I4 octahedra that are piled along the a-axis. Notably, the Pb3SBrI3 is the first Pb-based chalcohalide featuring such a 2D structure. In this work, we examined in detail its synthesis, crystal structure, optical properties and theoretical calculation results.
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