biostudies-literatureHuisman BAHEuropean Research CouncilMinisterio de Ciencia e Innovaci?nGeneralitat Valenciana5212-5216https://www.ebi.ac.uk/biostudies/studies/S-EPMC9682476biostudies-literatureUnknown60(7)Zero-dimensional (0D) mixed-halide hybrid organic-inorganic MA₄PbX₆·2H₂O (MA = CH₃NH₃⁺; X = Br_{1 - <i>x</i>}I<i>_x</i> with 0 < <i>x</i> < 1) has been synthesized by a solvent-free mechanochemical approach. It has been shown that this 0D phase with sharp absorption features in the near-UV is a hydrated structure, which can be reversibly transformed into the three-dimensional perovskite phase MAPbX₃ by simple thermal annealing (dehydration) in air. This work reveals a new approach to hybrid organic-inorganic perovskites and related 0D structures, which have so far only been thoroughly studied for the inorganic Cs₄PbX₆ compounds.Inorganic chemistryZero-Dimensional Hybrid Organic-Inorganic Lead Halides and Their Post-Synthesis Reversible Transformation into Three-Dimensional Perovskites.PMC9682476MAT2017-88821-RIDIFEDER/2018/061EQC2018-004888-PPrometeu/2020/077PCI2019-111829-2834431Huisman BAHPalazon FBolink HJfalseZero-Dimensional Hybrid Organic-Inorganic Lead Halides and Their Post-Synthesis Reversible Transformation into Three-Dimensional Perovskites.Zero-dimensional (0D) mixed-halide hybrid organic-inorganic MA₄PbX₆·2H₂O (MA = CH₃NH₃⁺; X = Br_{1 - <i>x</i>}I<i>_x</i> with 0 < <i>x</i> < 1) has been synthesized by a solvent-free mechanochemical approach. It has been shown that this 0D phase with sharp absorption features in the near-UV is a hydrated structure, which can be reversibly transformed into the three-dimensional perovskite phase MAPbX₃ by simple thermal annealing (dehydration) in air. This work reveals a new approach to hybrid organic-inorganic perovskites and related 0D structures, which have so far only been thoroughly studied for the inorganic Cs₄PbX₆ compounds.2021-01-01T00:00:00Z2021 Apr2025-04-05T10:57:51.157Z2025-04-05T10:57:51.157ZS-EPMC96824763370512410.1021/acs.inorgchem.1c00212