A. Abduaini et al., CHARACTERIZATION OF SELF-ASSEMBLED MONOLAYER OF THIOPHENOL ON GOLD BYPENNING IONIZATION ELECTRON-SPECTROSCOPY, Journal of electron spectroscopy and related phenomena, 88, 1998, pp. 849-854
The molecular orientation in self-assembled monolayers (SAMs) of thiop
henol chemisorbed on polycrystalline gold from aqueous solutions has b
een investigated by Penning ionization electron spectroscopy (PIES) an
d ultraviolet photoelectron spectroscopy (UPS). The analysis of the re
lative band intensity of the Penning spectrum indicates that the pheny
l ring in phenyl thiolate stands perpendicular to the substrate plane
at room temperature. Upon heating, the phenyl ring becomes tilted in t
he layer. (C) 1998 Elsevier Science B.V.