Issue 36, 2010

Experimental structure determination of the chemisorbed overlayers of chlorine and iodine on Au{111}

Abstract

We have performed an experimental structure determination of the ordered Image ID:c003461d-t1.gif structures of chlorine and iodine on Au{111} using low-energy electron diffraction (LEED). Despite great similarities in the structure of the underlying substrate, which shows only minor deviations from the bulk positions in both cases, chlorine and iodine are found to adsorb in different adsorption sites, fcc and hcp hollow sites, respectively. The experimental Au–Cl and Au–I bond lengths of 2.56 and 2.84 Å are close to the sums of the covalent radii, supporting the view that the bond is essentially covalent in nature; however, they are significantly shorter than predicted theoretically.

Graphical abstract: Experimental structure determination of the chemisorbed overlayers of chlorine and iodine on Au{111}

Article information

Article type
Paper
Submitted
23 Feb 2010
Accepted
20 May 2010
First published
08 Jul 2010

Phys. Chem. Chem. Phys., 2010,12, 10754-10758

Experimental structure determination of the chemisorbed overlayers of chlorine and iodine on Au{111}

Z. V. Zheleva, V. R. Dhanak and G. Held, Phys. Chem. Chem. Phys., 2010, 12, 10754 DOI: 10.1039/C003461D

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