Alkylation of Gold Surface by Treatment with C18H37HgOTs and Anodic Hg Stripping

Treatment of a gold surface with a solution of C18H37HgOTs under ambient conditions results in the formation of a covalently adsorbed monolayer containing alkyl chains attached directly to gold, Hg(0) atoms, and no tosyl groups. It is stable against a variety of chemical agents. When the initial dep...

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Published inJournal of the American Chemical Society Vol. 135; no. 15; pp. 5669 - 5677
Main Authors Mucha, Malgorzata, Kaletová, Eva, Kohutová, Anna, Scholz, Frank, Stensrud, Elizabeth S, Stibor, Ivan, Pospíšil, Lubomír, von Wrochem, Florian, Michl, Josef
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 17.04.2013
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Summary:Treatment of a gold surface with a solution of C18H37HgOTs under ambient conditions results in the formation of a covalently adsorbed monolayer containing alkyl chains attached directly to gold, Hg(0) atoms, and no tosyl groups. It is stable against a variety of chemical agents. When the initial deposition is performed at a positive applied potential and is followed by oxidative electrochemical stripping, the mercury can be completely removed, leaving a gold surface covered only with alkyl chains. The details of the attachment structure are not known. The conclusions are based on infrared spectroscopy, X-ray and UV photoelectron spectroscopy, ellipsometry, contact angle goniometry, differential pulse polarography, and measurements of electrode blocking and electrochemical admittance.
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ISSN:0002-7863
1520-5126
DOI:10.1021/ja3117125