Effect of halo substitution on the geometry of arenethiol films on Cu(111).
Incomplete coverages of p-fluorothiophenol, p-chlorothiophenol, and p-bromothiophenol form ordered islands on a Cu(111) surface even at low temperatures. The complexity of the molecular patterns increases from a simple (3 x 4) superlattice to a honeycomb (8 x 8)R19 degrees structure with increasing substituent electronegativity. We propose a model based on quadrupolar intermolecular interactions to account for this observation.
Wong
Kin
K
Pierce Hall, University of California-Riverside, Riverside, California 92521, USA.
Kwon
Ki-Young
KY
Rao
Bommisetty V
BV
Liu
Anwei
A
Bartels
Ludwig
L