Issue 3, 2015

Hybrid atomic structure of the Schmid cluster Au55(PPh3)12Cl6 resolved by aberration-corrected STEM

Abstract

We have investigated the atomic structure of the Au55(PPh3)12Cl6 Schmid cluster by using aberration-corrected scanning transmission electron microscopy (STEM) combined with multislice simulation of STEM images. Atom counting was employed, with size-selected clusters as mass standards, to “fractionate” the correct cluster size in the image analysis. Systematic structure analysis shows that a hybrid structure, predicted by density functional theory, best matches nearly half the clusters observed. Most other clusters are amorphous. We believe our conclusions are consistent with all the previous, apparently contradictory structural studies of the Schmid cluster.

Graphical abstract: Hybrid atomic structure of the Schmid cluster Au55(PPh3)12Cl6 resolved by aberration-corrected STEM

Supplementary files

Article information

Article type
Communication
Submitted
14 Oct 2014
Accepted
10 Nov 2014
First published
17 Nov 2014

Nanoscale, 2015,7, 885-888

Author version available

Hybrid atomic structure of the Schmid cluster Au55(PPh3)12Cl6 resolved by aberration-corrected STEM

N. Jian, C. Stapelfeldt, K. Hu, M. Fröba and R. E. Palmer, Nanoscale, 2015, 7, 885 DOI: 10.1039/C4NR06059H

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