Title: Reaction of long-chain iodoalkanes with gold surfaces
Authors : Hirayama, Martina
Caseri, Walter
Suter, Ulrich
Published in : Journal of Colloid and Interface Science
Volume(Issue) : 202
Issue : 1
Pages : 167
Pages to: 172
Publisher / Ed. Institution : Science Academic Press
Issue Date: Jun-1998
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : Monolayer; Iodoalkanes; Surface reaction; Gold
Subject (DDC) : 540: Chemistry
Abstract: Gold surfaces were treated with solutions of 1-iodododecane, 1-iodooctadecane, 1,10-diiododecane, 1-bromododecane, and 1,10-dibromodecane. Thereafter the surfaces were studied with IR spectroscopy at grazing incidence reflection, XPS, ellipsometry, and contact angle measurements. Evidence for the formation of ultrathin layers was found for the compounds containing iodine but not for those containing bromine. The results imply that the iodoalkanes dissociate on the surface, creating Au-C and Au-I bonds. As a consequence, a mixed monolayer of iodide and alkyl species is present on the surface. These layers are hydrophobic; the advancing contact angles of water on these surfaces are 82 - 93°. The surface-bound species resist desorption in pure solvent at least for 1 - 2 days.
Departement: School of Engineering
Publication type: Article in scientific Journal
DOI : 10.1006/jcis.1998.5462
ISSN: 0021-9797
URI: https://digitalcollection.zhaw.ch/handle/11475/3024
Appears in Collections:Publikationen School of Engineering

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