A1 Journal article (refereed)
Experimental Confirmation of a Topological Isomer of the Ubiquitous Au25(SR)18 Cluster in the Gas Phase (2021)

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

JYU authors or editors

Publication details

All authors or editorsKalenius, Elina; Malola, Sami; Matus, María Francisca; Kazan, Rania; Bürgi, Thomas; Häkkinen, Hannu

Journal or seriesJournal of the American Chemical Society



Publication year2021


Issue number3

Pages range1273-1277

PublisherAmerican Chemical Society

Publication countryUnited States

Publication languageEnglish


Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/76293


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.


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Ministry reportingYes

Reporting Year2021

JUFO rating3

Last updated on 2024-22-04 at 17:48