Tuning the surface potential of Ag surfaces by chemisorption of oppositely-oriented thiolated carborane dipoles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F11%3A00429454" target="_blank" >RIV/61388980:_____/11:00429454 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jcis.2010.10.052" target="_blank" >http://dx.doi.org/10.1016/j.jcis.2010.10.052</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jcis.2010.10.052" target="_blank" >10.1016/j.jcis.2010.10.052</a>

Result language
angličtina
Original language name
Tuning the surface potential of Ag surfaces by chemisorption of oppositely-oriented thiolated carborane dipoles
Original language description
Two selected carboranethiol isomers were used to modify flat silver surfaces. Both isomers, 1,2-(HS)(2)-1, 2-C(2)B(10)H(10) (a) and 9,12-(HS)(2)-1,2-C(2)B(10)H(10) (b), are relatively strong dipoles with two SH groups per molecule. They are both anchoredto the surface via two SH groups per molecule. Topography and surface potential changes of the modified silver surfaces were studied using Scanning Kelvin Probe Force Microscopy (SKPFM). These measurements proved that both isomers are oppositely oriented on the surface. The former isomer increases, and the latter one decreases the surface potential of a modified silver film. The relative changes of the surface potential correlate well with the dipole moments of the isomers. Competitive chemisorption from a 1:1 mixture of both isomers shows that the isomer (a) is found in a significantly higher concentration on the surface than the isomer (b). This has been proved by both SKPFM and X-ray photoelectron spectroscopy (XPS) techniques. Addi
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
<a href="/en/project/IAA400320901" target="_blank" >IAA400320901: Gold and silver surfaces modified with functional derivatives of boron hydrides</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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