High-Pressure States of the Au<sub>25</sub> Cluster
In the present work, the effects of pressure on the electronic, vibrational, and structural properties of neutral and negatively charged Au25(SR)18 clusters are investigated up to 15 GPa combining UV–vis absorption and Raman spectroscopy. We show that Au25(SR)18 clusters undergo three structural transitions in the 0–15 GPa range located at around 0.8, 6, and 11 GPa. Results indicate that these phase transitions are intrinsic to the M25(SR)18 structure and independent of the pressurization conditions, type of ligand, and charge state. The reported Raman measurements show that vibrational spectroscopy is a powerful tool for structural tracking of atomically precise metal nanoclusters under the application of pressure.
Authors
- Michał Swierczewski
- Daniele Rosa‐Gastaldo (ORCID: https://orcid.org/0000-0002-6396-6035)
- Camino Martín-Sánchez (ORCID: https://orcid.org/0000-0003-3574-7748)
- Arnulf Rosspeintner (ORCID: https://orcid.org/0000-0002-1828-5206)
- Abolfazl Ziarati (ORCID: https://orcid.org/0000-0001-6686-4758)
- Thomas Bürgi (ORCID: https://orcid.org/0000-0003-0906-082X)
- Khadijetou Ahmed Ethmane
Institutions
- University of Geneva (CH)
Publication Details
- Journal
- Chemistry of Materials
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1021/acs.chemmater.5c00755
- Primary Topic
- Nanocluster Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Ministerio de Ciencia y Tecnología