Issue 48, 2013

Structure and stress of Re(11[2 with combining macron]1); chiral terraces at a racemic surface


The surface structure and morphology of the clean Re(11[2 with combining macron]1) surface has been investigated through combined low energy electron diffraction intensity analysis of data taken at multiple angles of incidence, scanning tunneling microscopy, and first-principles density functional calculations. The results show how this globally racemic surface terminates in two chirally distinct terraces, which show large-scale out-of-plane atomic relaxations and in-plane lateral movement of the uppermost atoms. We further identify and discuss the initial stages of step bunching upon adsorption of oxygen that leads ultimately to the large-scale faceting of the surface. Finally, we present calculations of surface stress and the response to applied surface strain, which suggest routes to the exertion of control over the expression of chirality at the surface.

Graphical abstract: Structure and stress of Re(11 [[2 with combining macron]] 1); chiral terraces at a racemic surface

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Article information

Article type
26 Jul 2013
14 Oct 2013
First published
15 Oct 2013
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2013,15, 20823-20829

Structure and stress of Re(11[2 with combining macron]1); chiral terraces at a racemic surface

H. A. Etman, G. Held, S. J. Jenkins and R. A. Bennett, Phys. Chem. Chem. Phys., 2013, 15, 20823 DOI: 10.1039/C3CP53165A

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