Chemically Defined <i>Ln</i> <sub>2</sub> H <sub> 3– <i>x</i> </sub> N Nitride-Hydrides via High-Pressure Synthesis and Topochemical Hydrogen Intercalation
gas pressure after releasing the mechanical pressure, thereby driving a metal-semiconductor transition. This combination of high-pressure synthesis and post-synthetic topochemical intercalation provides a powerful yet underexplored route to access pressure-stabilized mixed-anion frameworks with precisely tunable anion stoichiometry. In addition, Nd and Gd analogues were synthesized at 8 GPa, and density functional theory calculations indicate that chemical pressure induced by lanthanide substitution systematically tunes the band structures from semiconducting to semimetallic regimes.
Authors
- Hiroki Ubukata (ORCID: https://orcid.org/0000-0002-3602-312X)
- Hiroshi Takatsu (ORCID: https://orcid.org/0000-0001-5792-0113)
- Cédric Tassel (ORCID: https://orcid.org/0000-0002-8867-4813)
- Hiroshi Kageyama (ORCID: https://orcid.org/0000-0002-3911-9864)
- Daichi Kato (ORCID: https://orcid.org/0000-0002-1600-4095)
- Kantaro Murayama (ORCID: https://orcid.org/0000-0003-0993-0215)
- Yu Cao (ORCID: https://orcid.org/0000-0003-0744-6833)
- Tong Zhu (ORCID: https://orcid.org/0000-0003-0288-0462)
- Zefeng Wei
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université de Bordeaux (FR)
- Kyoto University (JP)
- Institut de Chimie de la Matière Condensée de Bordeaux (FR)
- Institut Polytechnique de Bordeaux (FR)
Publication Details
- Journal
- Journal of the American Chemical Society
- Published
- 2026-03-31
- DOI
- https://doi.org/10.1021/jacs.6c02443
- Primary Topic
- Inorganic Chemistry and Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- New Energy and Industrial Technology Development Organization
- Japan Society for the Promotion of Science
- Japan Science and Technology Agency