Article (Scientific journals)
Probing Organization and Structural Characteristics of Alkanethiols Adsorbed on Gold and of Model Alkane Compounds through their Valence Electronic Structure: an Ultraviolet Photoelectron Spectroscopy Study
Duwez, Anne-Sophie; Pfister-Guillouzo, G.; Delhalle, Joseph et al.
2000In Journal of Physical Chemistry B, 104, p. 9029-9037
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Keywords :
monolayers; self-assembly; XPS; UPS
Abstract :
[en] In this paper we report an ultraviolet photoelectron spectroscopy (UPS) study of saturated alkane chains in various configurations and conformations. The dependence of the valence spectra on molecular structure characteristics has been assessed by comparing the results obtained from n-alkanethiol, R,ö-alkanedithiol, and R-cycloalkyl-ö-alkanethiol monolayers adsorbed on gold, and from gas-phase model alkane compounds. The differences between the spectra reflect directly the structural changes induced in the electronic structure of the alkane chains. We have determined the type of folding sequences adopted in a 1,12-dodecanedithiol monolayer. Angular dependent measurements and investigations on the photoelectron attenuation length have evidenced very fine structural differences between films obtained on deposited gold films, annealed gold films, and gold single crystals
Disciplines :
Chemistry
Author, co-author :
Duwez, Anne-Sophie  ;  Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP. Present address: University of Liège
Pfister-Guillouzo, G.;  Centre UniVersitaire de Recherche Scientifique, Pau, France
Delhalle, Joseph;  Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP
Riga, Joseph;  Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP
Language :
English
Title :
Probing Organization and Structural Characteristics of Alkanethiols Adsorbed on Gold and of Model Alkane Compounds through their Valence Electronic Structure: an Ultraviolet Photoelectron Spectroscopy Study
Publication date :
2000
Journal title :
Journal of Physical Chemistry B
ISSN :
1520-6106
eISSN :
1520-5207
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
104
Pages :
9029-9037
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
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