Pb3SBrI3: the first Pb-based chalcohalide with multiple halogens features a unique two-dimensional structure composed of diverse Pb-centered polyhedra

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...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2022-08, Vol.51 (34), p.12921-12927
Main Authors: Yan, Mei, Ru-Ling Tang, Zhou, Wenfeng, Liu, Wenlong, Sheng-Ping, Guo
Format: Article
Language:English
Subjects:
Crystal structure
Halides
Halogens
Hydrothermal reactions
Optical properties
Organic chemistry
Pyramids
Online Access:Get full text
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Summary: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.
ISSN:1477-9226
1477-9234
DOI:10.1039/d2dt02038f