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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.9b02401
|2 doi
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|a DE-627
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|a eng
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|a Dery, Shahar
|e verfasserin
|4 aut
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|a Strong Metal-Adsorbate Interactions Increase the Reactivity and Decrease the Orientational Order of OH-Functionalized N-Heterocyclic Carbene Monolayers
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 04.03.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Fundamental understanding of the correlation between the structure and reactivity of chemically addressable N-heterocyclic carbene (NHC) molecules on various surfaces is essential for the design of functional NHC-based self-assembled monolayers. In this work, we identified the ways by which the deposition of chemically addressable OH-NHCs on Au(111) or Pt(111) surfaces modified the anchoring geometry and chemical reactivity of surface-anchored NHCs. The properties of surface-anchored NHCs were probed by conducting X-ray photoelectron spectroscopy and polarized near-edge X-ray absorption fine structure measurements. While no preferred orientation was identified for OH-NHCs on Pt(111), the anchored molecules adopted a preferred flat-lying position on Au(111). Dehydrogenation and aromatization of the imidazoline ring along with partial hydroxyl oxidation were detected in OH-NHCs that were anchored on Au(111). The dehydrogenation and aromatization reactions were facilitated, along with partial decomposition, for OH-NHCs that were anchored on Pt(111). The spectroscopic results reveal that stronger metal-adsorbate interactions increase the reactivity of surface-anchored OH-NHCs while decreasing their molecular orientational order
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|a Journal Article
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|a Berg, Iris
|e verfasserin
|4 aut
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|a Kim, Suhong
|e verfasserin
|4 aut
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|a Cossaro, Albano
|e verfasserin
|4 aut
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| 700 |
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|a Verdini, Alberto
|e verfasserin
|4 aut
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|a Floreano, Luca
|e verfasserin
|4 aut
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|a Toste, F Dean
|e verfasserin
|4 aut
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| 700 |
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|a Gross, Elad
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 36(2020), 3 vom: 28. Jan., Seite 697-703
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:36
|g year:2020
|g number:3
|g day:28
|g month:01
|g pages:697-703
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|u http://dx.doi.org/10.1021/acs.langmuir.9b02401
|3 Volltext
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