English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Optical second harmonic generation at Hg electrodes. The adsorption of aniline

MPS-Authors
/persons/resource/persons58799

Marlow,  Frank
Zentrum für heterogene Katalyse, Rudower Chaussee 5, O-1199 Berlin, Germany;
Research Group Marlow, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Werner, L., Marlow, F., Hill, W., & Retter, U. (1992). Optical second harmonic generation at Hg electrodes. The adsorption of aniline. Chemical Physics Letters, 194(1-2), 39-44. doi:10.1016/0009-2614(92)85739-W.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0024-487D-F
Abstract
We have measured the optical second harmonic generation (SHG) at a mercury electrode. The influence of the applied potential and of the adsorption of aniline on the nonlinear optical response were studied by simultaneously measured differential capacitance. The results reflect the potential-dependent orientation of aniline molecules at the electrode. We proved that in the cathodic region where the aniline molecules are oriented perpendicularly to the electrode, the second harmonic signal is only an effect of the metal electrons. In the anodic region the SHG is markedly influenced by the interaction between the π electrons of the flatly oriented adsorbate and the metal.