%0 Journal Article %T N -Heterocyclic carbenes on close-packed coinage metal surfaces: bis-carbene metal adatom bonding scheme of monolayer films on Au, Ag and Cu %+ Chair of Molecular Nanoscience and Chemical Physics of Interfaces (E20) %+ Chair of Proteomics and Bioanalytics %+ Département de Chimie, École Normale Supérieure %A Jiang, Li %A Zhang, Bodong %A Médard, Guillaume %A Seitsonen, Ari Paavo %A Haag, Felix %A Allegretti, Francesco %A Reichert, Joachim %A Kuster, Bernhard %A Barth, Johannes %A Papageorgiou, Anthoula %< avec comité de lecture %@ 2041-6520 %J Chemical Science %I The Royal Society of Chemistry %V 8 %N 12 %P 8301-8308 %8 2017 %D 2017 %R 10.1039/C7SC03777E %Z Physics [physics]Journal articles %X By means of scanning tunnelling microscopy (STM), complementary density functional theory (DFT) and X-ray photoelectron spectroscopy (XPS) we investigate the binding and self-assembly of a saturated molecular layer of model N-heterocyclic carbene (NHC) on Cu(111), Ag(111) and Au(111) surfaces under ultra-high vacuum (UHV) conditions. XPS reveals that at room temperature, coverages up to a monolayer exist, with the molecules engaged in metal carbene bonds. On all three surfaces, we resolve similar arrangements, which can be interpreted only in terms of mononuclear M(NHC)2 (M = Cu, Ag, Au) complexes, reminiscent of the paired bonding of thiols to surface gold adatoms. Theoretical investigations for the case of Au unravel the charge distribution of a Au(111) surface covered by Au(NHC)2 and reveal that this is the energetically preferential adsorption configuration. %G English %L cea-04075498 %U https://cea.hal.science/cea-04075498 %~ CEA