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

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Zheleva, Z.V., Dhanak, V.R. and Held, G. (2010) Experimental structure determination of the chemisorbed overlayers of chlorine and iodine on Au{111}. Physical Chemistry Chemical Physics, 12 (36). pp. 10754-10758. ISSN 1463-9076

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To link to this article DOI: 10.1039/c003461d

Abstract/Summary

We have performed an experimental structure determination of the ordered p(sqrt[3] x sqrt[3])R30 degrees 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 A 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.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:15533
Uncontrolled Keywords:scanning-tunneling-microscopy; surface chloride; adsorption; catalysis; cu(111); nanoparticles; diffraction; adlayer; ag(111); oxygen
Publisher:Royal Society of Chemistry

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