ORBi: Duwez Anne-Sophie - 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

Reference : Probing Organization and Structural Characteristics of Alkanethiols Adsorbed on Gold and...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/59150

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
Language :	English
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 > > > >]
Publication date :	2000
Journal title :	Journal of Physical Chemistry B
Publisher :	American Chemical Society
Volume :	104
Pages :	9029-9037
Audience :	International
ISSN :	1520-6106
e-ISSN :	1520-5207
City :	Washington
Country :	DC
Keywords :	[en] 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
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/59150

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