3 research outputs found
Surface Structure and Electron Transfer Dynamics of the Self Assembly of Cyanide on Au 111
A vibronic resonance
between Au{111} surface states and adsorbed
CN vibrations has been predicted, which we target for study. We have
formed stable monolayers of cyanide on Au{111} and observe a hexagonal
close-packed lattice with a nearest neighbor distance of 3.8 ±
0.5 Å. Cyanide orients normal to the surface attached via a Au–C
bond. We show that the substrate–molecule coupling is particularly
strong, leading to ultrafast electron transfer from the cyanide molecules
to the Au{111} substrate as measured by resonant Auger spectroscopy
using the core–hole clock method. The CN/Au{111} system is
a simple example of a strongly interacting adsorbate–substrate
system and will be the subject of a number of further studies, as
discussed