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|a 10.1002/jcc.26801
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|a eng
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|a Jain, Mitisha
|e verfasserin
|4 aut
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|a Adatom mediated adsorption of N-heterocyclic carbenes on Cu(111) and Au(111)
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|c 2022
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|a Text
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|a ƒaComputermedien
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|a Date Revised 20.01.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 The Authors. Journal of Computational Chemistry published by Wiley Periodicals LLC.
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|a The adsorption of N-heterocyclic carbenes (NHCs) on Cu(111) and Au(111) surfaces is studied with density-functional theory. The role of the molecular side groups as well as the surface morphology in determining the adsorption geometry are explored in detail. Flat-laying NHCs, as observed experimentally for NHC with relatively small side groups, result from the adsorption at adatoms and give rise to the so-called ballbot configurations, which are more stable than adsorption on flat surfaces and provide an efficient precursor for the formation of bis(NHC) dimers. On Au(111), the resulting (NHC)2 Au complexes are purely physisorbed and thus mobile. On the more reactive Cu(111), in contrast, the central Cu atom in the (NHC)2 Cu dimer is still covalently bound to the surface, resulting in a mobility, which has to be thermally activated
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|a DFT
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|a M(111) surfaces
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|a N-heterocyclic carbenes
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|a adatoms
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|a side groups
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|a Gerstmann, Uwe
|e verfasserin
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|a Schmidt, Wolf Gero
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|a Aldahhak, Hazem
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|i Enthalten in
|t Journal of computational chemistry
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|g 43(2022), 6 vom: 05. März, Seite 413-420
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|g volume:43
|g year:2022
|g number:6
|g day:05
|g month:03
|g pages:413-420
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|u http://dx.doi.org/10.1002/jcc.26801
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