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

    Year: 2013

    Journal: Journal of American Chemical Society, 135, pp 5669-5677, 20130926

    Authors: Malgorzata Mucha, Eva Kaletová, Anna Kohutová, Frank Scholz, Elizabeth S. Stensrud, Ivan Stibor, Lubomír Pospíšil, Florian von Wrochem, Josef Michl

    Organizations: Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 16610 Prague 6, Czech Republic, Sony Deutschland GmbH, Materials Science Laboratory, Hedelfinger Strasse 61, 70327 Stuttgart, Germany, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 18223 Prague, Czech Republic, Department of Chemistry and Biochemistry, University of Colorado, 215 UCB, Boulder, Colorado 80309-0215, United States

    Treatment of a gold surface with a solution ofC18H37HgOTs under ambient conditions results in theformation of a covalently adsorbed monolayer containingalkyl chains attached directly to gold, Hg(0) atoms, and notosyl groups. It is stable against a variety of chemical agents.When the initial deposition is performed at a positive appliedpotential and is followed by oxidative electrochemicalstripping, the mercury can be completely removed, leaving agold surface covered only with alkyl chains. The details of theattachment structure are not known. The conclusions are based on infrared spectroscopy, X-ray and UV photoelectronspectroscopy, ellipsometry, contact angle goniometry, differential pulse polarography, and measurements of electrode blockingand electrochemical admittance.