Experimental structure determination of the chemisorbed overlayers of chlorine and iodine on Au{111}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
It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1039/c003461d Abstract/SummaryWe 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.
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