Reference : Stability of functionalized platform molecules on Au(111) |
Scientific journals : Article | |||
Physical, chemical, mathematical & earth Sciences : Physics | |||
Physics and Materials Science | |||
http://hdl.handle.net/10993/38103 | |||
Stability of functionalized platform molecules on Au(111) | |
English | |
Jasper-Tönnies, Torben [] | |
Poltavskyi, Igor [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >] | |
Ulrich, Sandra [] | |
Moje, Tobias [] | |
Tkatchenko, Alexandre ![]() | |
Herges, Rainer [] | |
Berndt, Richard [] | |
27-Dec-2018 | |
Journal of Chemical Physics | |
American Institute of Physics | |
149 | |
8 | |
Yes (verified by ORBilu) | |
International | |
0021-9606 | |
1089-7690 | |
New York | |
NY | |
[en] Trioxatriangulenium (TOTA) platform molecules were functionalized with methyl, ethyl, ethynyl,
propynyl, and hydrogen and sublimated onto Au(111) surfaces. Low-temperature scanning tunneling microscopy data reveal that >99% of ethyl-TOTA and methyl-TOTA remain intact, whereas 60% of H-TOTA and >99% of propynyl-TOTA and ethynyl-TOTA decompose. The observed tendency toward fragmentation on Au(111) is opposite to the sequence of gas-phase stabilities of the molecules. Although Au(111) is the noblest of all metal surfaces, the binding energies of the decomposition products to Au(111) destabilize the functionalized platforms by 2 to 3.9 eV (190–370 kJ/mol) and even render some of them unstable as revealed by density functional theory calculations. Van der Waals forces are important, as they drive the adsorption of the platform molecules. | |
Researchers ; Professionals ; Students ; General public ; Others | |
http://hdl.handle.net/10993/38103 | |
10.1063/1.5059344 | |
FnR ; FNR11360857 > Alexandre Tkatchenko > QUANTION > Quantum Ion Tunneling and Scattering in Layered Nanomaterials > 01/03/2017 > 28/02/2020 > 2016 |
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