Experimental Confirmation of a Topological Isomer of the Ubiquitous Au25(SR)18 Cluster in the Gas Phase
Abstract
High-resolution electrospray ionization ion mobility mass spectrometry has revealed a gas-phase isomer of the ubiquitous, extremely well-studied Au25(SR)18 cluster both in anionic and cationic form. The relative abundance of the isomeric structures can be controlled by in-source activation. The measured collision cross section of the new isomer agrees extremely well with a recent theoretical prediction (Matus, M. F.; et al. Chem. Commun. 2020, 56, 8087) corresponding to a Au25(SR)18– isomer that is energetically close and topologically connected to the known ground-state structure via a simple rotation of the gold core without breaking any Au–S bonds. The results imply that the structural dynamics leading to isomerization of thiolate-protected gold clusters may play an important role in their gas-phase reactions and that isomerization could be controlled by external stimuli.
Main Authors
Format
Articles
Research article
Published
2021
Series
Subjects
Publication in research information system
Publisher
American Chemical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202106073509Käytä tätä linkitykseen.
Review status
Peer reviewed
ISSN
0002-7863
DOI
https://doi.org/10.1021/jacs.0c11509
Language
English
Published in
Journal of the American Chemical Society
Citation
- Kalenius, E., Malola, S., Matus, M. F., Kazan, R., Bürgi, T., & Häkkinen, H. (2021). Experimental Confirmation of a Topological Isomer of the Ubiquitous Au25(SR)18 Cluster in the Gas Phase. Journal of the American Chemical Society, 143(3), 1273-1277. https://doi.org/10.1021/jacs.0c11509
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Funder(s)
Research Council of Finland
Research Council of Finland
Research Council of Finland
Funding program(s)
Research costs of Academy Professor, AoF
Research costs of Academy Professor, AoF
Research post as Academy Professor, AoF
Akatemiaprofessorin tutkimuskulut, SA
Akatemiaprofessorin tutkimuskulut, SA
Akatemiaprofessorin tehtävä, SA
Additional information about funding
The research at the University of Jyväskylä was supported by the Academy of Finland (Grants 292352, 294217, and 319208 to H.H.). The work at the University of Geneva was supported by the Swiss National Science Foundation (Grant 200020_172511).
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