Study of the adsorption of 4-cyanopyridine on Au(111) using sum frequency generation nonlinear spectroscopy

Authors
Pluchery, O Zheng, WQ Marin, T Tadjeddine, A
Citation
O. Pluchery et al., Study of the adsorption of 4-cyanopyridine on Au(111) using sum frequency generation nonlinear spectroscopy, PHYS ST S-A, 175(1), 1999, pp. 145-151
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
175
Issue
1
Year of publication
1999
Pages
145 - 151
Database
ISI
SICI code
0031-8965(19990916)175:1<145:SOTAO4>2.0.ZU;2-R
Abstract
The adsorption of 4-cyanopyridine on a Au(111) single crystal has been stud ied using the nonlinear Sum Frequency Generation Spectroscopy. By probing t he molecule vibrations in the 1000 cm(-1) range thanks to the use of the tu nable beam of the Free Electron Laser CLIO, and in the 2100 cm(-1) range, i t was possible to monitor the progressive flipping of the molecule on the s urface when the electrochemical potential is increased from -1.0 up to +0.7 V (Ag/AgCl). These in situ experiments under potential control, allow us t o have a better understanding of the adsorption geometry of 4-cyanopyridine on Au(111).