The Role of a Double Molecular Anchor on the Mobility and Self-Assembly of Thiols on Au(111): The Case of Mercaptobenzoic Acid

The dynamics of the self-assembly process of thiol molecules on Au(111) is affected by the interplay between molecule–substrate and molecule–molecule interactions. Therefore, it is interesting to explore the effect of a second anchor to the gold surface, in addition to the S atom, on both the order...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Rodríguez González, Miriam C., Carro, Pilar, Pensa, Evangelina Laura, Vericat, Carolina, Salvarezza, Roberto Carlos, Hernández Creus, Alberto
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2017
Materias:
Química
Density functional calculations
Molecular dynamics
Self-assembly
Surface analysis
Thin films
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/98048
https://ri.conicet.gov.ar/11336/63818
https://onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201601313
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-98048
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Density functional calculations
Molecular dynamics
Self-assembly
Surface analysis
Thin films
spellingShingle Química
Density functional calculations
Molecular dynamics
Self-assembly
Surface analysis
Thin films
Rodríguez González, Miriam C.
Carro, Pilar
Pensa, Evangelina Laura
Vericat, Carolina
Salvarezza, Roberto Carlos
Hernández Creus, Alberto
The Role of a Double Molecular Anchor on the Mobility and Self-Assembly of Thiols on Au(111): The Case of Mercaptobenzoic Acid
topic_facet Química
Density functional calculations
Molecular dynamics
Self-assembly
Surface analysis
Thin films
description The dynamics of the self-assembly process of thiol molecules on Au(111) is affected by the interplay between molecule–substrate and molecule–molecule interactions. Therefore, it is interesting to explore the effect of a second anchor to the gold surface, in addition to the S atom, on both the order and the feasibility of phase transitions in self-assembled monolayers. To assess the role of an additional O anchor, we have compared the adsorption of two mercaptobenzoic acid isomers, 2-mercaptobenzoic acid (2-MBA) and 4-mercaptobenzoic acid (4-MBA), on Au(111). Results from scanning tunneling microscopy, X-ray photoelectron spectroscopy, electrochemical techniques, and density functional theory calculations show that the additional O anchor in 2-MBA hinders surface mobility, reducing domain size and impeding the molecular reorganization involved in phase transition to denser phases on the Au(111) substrates. This knowledge can help to predict the range order and molecular density of the thiol SAM depending on the chemical structure of the adsorbate.
format Articulo
Preprint
author Rodríguez González, Miriam C.
Carro, Pilar
Pensa, Evangelina Laura
Vericat, Carolina
Salvarezza, Roberto Carlos
Hernández Creus, Alberto
author_facet Rodríguez González, Miriam C.
Carro, Pilar
Pensa, Evangelina Laura
Vericat, Carolina
Salvarezza, Roberto Carlos
Hernández Creus, Alberto
author_sort Rodríguez González, Miriam C.
title The Role of a Double Molecular Anchor on the Mobility and Self-Assembly of Thiols on Au(111): The Case of Mercaptobenzoic Acid
title_short The Role of a Double Molecular Anchor on the Mobility and Self-Assembly of Thiols on Au(111): The Case of Mercaptobenzoic Acid
title_full The Role of a Double Molecular Anchor on the Mobility and Self-Assembly of Thiols on Au(111): The Case of Mercaptobenzoic Acid
title_fullStr The Role of a Double Molecular Anchor on the Mobility and Self-Assembly of Thiols on Au(111): The Case of Mercaptobenzoic Acid
title_full_unstemmed The Role of a Double Molecular Anchor on the Mobility and Self-Assembly of Thiols on Au(111): The Case of Mercaptobenzoic Acid
title_sort role of a double molecular anchor on the mobility and self-assembly of thiols on au(111): the case of mercaptobenzoic acid
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/98048
https://ri.conicet.gov.ar/11336/63818
https://onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201601313
work_keys_str_mv AT rodriguezgonzalezmiriamc theroleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT carropilar theroleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT pensaevangelinalaura theroleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT vericatcarolina theroleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT salvarezzarobertocarlos theroleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT hernandezcreusalberto theroleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT rodriguezgonzalezmiriamc roleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT carropilar roleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT pensaevangelinalaura roleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT vericatcarolina roleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT salvarezzarobertocarlos roleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
AT hernandezcreusalberto roleofadoublemolecularanchoronthemobilityandselfassemblyofthiolsonau111thecaseofmercaptobenzoicacid
bdutipo_str Repositorios
_version_ 1764820492582125570

Ejemplares similares