Resonance Charges to Encode Selection Rules in Inelastic Electron Tunneling Spectroscopy.
J Phys Chem Lett
; 3(20): 3007-11, 2012 Oct 18.
Article
en En
| MEDLINE
| ID: mdl-26292242
ABSTRACT
From extensive simulations of a set of covalently grafted phenyl derivatives onto Cu(111), we derive a simplistic rule that selectively predicts the onset of stretching vibrations in inelastic electron tunneling spectroscopy (IETS) with the scanning tunneling microscope. Indeed the rise (extinction) of the highest-frequency modes is found to correlate to the accumulation (depletion) of π electron density at the metal-organic contact point. This π electron density can be fine-tuned by the usage of (de) activating aromatic substituent at different ring positions. This finding provides a simple analysis tool that can be used to reveal structural characteristics on the atomic scale by IETS.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
J Phys Chem Lett
Año:
2012
Tipo del documento:
Article
País de afiliación:
Francia