Article (Scientific journals)
Molecule orientation in self-assembled monolayers determined by infrared-visible sum-frequency generation spectroscopy
Mani, A. A.; Schultz, Z. D.; Champagne, B. et al.
2004In Applied Surface Science, 237, p. 444–449
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Abstract :
[en] The molecular orientation in self-assembled monolayers of thiophenol (TP) on Ag(1 1 1) and of para-nitroanilinododecane-thiol (NAT) on Au was investigated by infrared-visible sum-frequency generation between 500 and 1500 cm-1. Ab initio calculations were performed to determine the interface nonlinear response. The combined experimental and theoretical results reveal that the S–C bond of TP is tilted 37° from the Ag(1 1 1) surface normal, with the aromatic ring plane perpendicular to the surface. On Au, the tilt angle of the NAT molecule stabilizes below 60° at the end of film growth.
Disciplines :
Physics
Author, co-author :
Mani, A. A.
Schultz, Z. D.
Champagne, B.
Humbert, Christophe
Dreesen, Laurent ;  Université de Liège - ULiège > Département de physique > Biophotonique
Gewirth, A. A.
White, J. O.
Thiry, P. A.
Peremans, A.
Caudano, Yves
Language :
English
Title :
Molecule orientation in self-assembled monolayers determined by infrared-visible sum-frequency generation spectroscopy
Publication date :
2004
Journal title :
Applied Surface Science
ISSN :
0169-4332
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
237
Pages :
444–449
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 October 2009

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