the electrode does not contain bulky substituents; (v) anthraquinones are adsorbed parallel to the surface and are not influenced by changes in concentration; (vi) the biphenyl moiety, initially adsorbed with both rings parallel to the surface, undergoes reorientation first to a structure in which both rings are bonded to the surface edgewise and then to a 1 2 structure in which one ring is attached and the other is pendant; (vii) preferential adsorption of organic functional groups on Pt follows the order thiol > N heteroaromatic > diphenol ring = quinonoid ring > benzene ring > alkene > amine > hydroxyl > ketone; (viii) in general, adsorbed molecules reorient to structures occupying smaller surface area.

No abstract