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Updated: Oct 13, 2025

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
Azetidinium Lead Halide Ruddlesden-Popper Phases
Jiyu Tian1,2, Eli Zysman-Colman2, Finlay D Morrison1
1EaStCHEM School of Chemistry, University of St Andrews, St Andrews KY16 9ST, UK.
Abstract:
A family of Ruddlesden-Popper (n = 1) layered perovskite-related phases, Az2PbClBr4- with composition 0 ≤ x ≤ 4 were obtained using mechanosynthesis. These compounds are isostructural with K2NiF4 and therefore adopt the idealised n = 1 Ruddlesden-Popper structure. A linear variation in unit cell volume as a function of anion average radius is observed. A tunable bandgap is achieved, ranging from 2.81 to 3.43 eV, and the bandgap varies in a second-order polynomial relationship with the halide composition.
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