Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains

Autores
Terán Arce, Fernando; Vela, María Elena; Salvarezza, Roberto Carlos; Arvia, Alejandro Jorge
Año de publicación
1998
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The structure and dynamics of dodecanethiol and butanethiol monolayers adsorbed on Au(111) at 298 K have been followed by in situ and ex situ scanning tunneling microscopy (STM). Results show that a gaslike initial adsorption stage where monatomic deep pit clustering occurs is followed by an advanced adsorption stage in which adlayer structural changes p(n×1) ⇒ (√3×√3)R30° ⇔ c(4×2) take place. The first change is interpreted as the motion of adsorbed molecules from fcc to hcp sites, and the second one is explained by the fluctuations of adsorbed molecules from hollow to bridge sites. The structural fluctuations at adsorbate domains occur simultaneously with fluctuations in the size of monatomic deep pits. These processes reveal the complexity of surface dynamics of alkanethiol adlayers on Au(111) at 298 K.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Química
Oro
alkanethiol
scanning tunneling microscopy
dodecanethiol
butanethiol
monatomic
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/85101
Acceder
id SEDICI_ad431feb1cb112073c4737539dafa29d
oai_identifier_str oai:sedici.unlp.edu.ar:10915/85101
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domainsTerán Arce, FernandoVela, María ElenaSalvarezza, Roberto CarlosArvia, Alejandro JorgeCiencias ExactasQuímicaOroalkanethiolscanning tunneling microscopydodecanethiolbutanethiolmonatomicThe structure and dynamics of dodecanethiol and butanethiol monolayers adsorbed on Au(111) at 298 K have been followed by in situ and ex situ scanning tunneling microscopy (STM). Results show that a gaslike initial adsorption stage where monatomic deep pit clustering occurs is followed by an advanced adsorption stage in which adlayer structural changes p(<i>n</i>×1) ⇒ (√3×√3)R30° ⇔ c(4×2) take place. The first change is interpreted as the motion of adsorbed molecules from fcc to hcp sites, and the second one is explained by the fluctuations of adsorbed molecules from hollow to bridge sites. The structural fluctuations at adsorbate domains occur simultaneously with fluctuations in the size of monatomic deep pits. These processes reveal the complexity of surface dynamics of alkanethiol adlayers on Au(111) at 298 K.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasFacultad de Ciencias Exactas1998-11-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf7203-7212http://sedici.unlp.edu.ar/handle/10915/85101enginfo:eu-repo/semantics/altIdentifier/issn/0743-7463info:eu-repo/semantics/altIdentifier/doi/10.1021/la9805286info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:39Zoai:sedici.unlp.edu.ar:10915/85101Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:39.652SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains
title Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains
spellingShingle Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains
Terán Arce, Fernando
Ciencias Exactas
Química
Oro
alkanethiol
scanning tunneling microscopy
dodecanethiol
butanethiol
monatomic
title_short Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains
title_full Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains
title_fullStr Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains
title_full_unstemmed Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains
title_sort Complex structural dynamics at adsorbed alkanethiol layers at Au (111) single-crystal domains
dc.creator.none.fl_str_mv Terán Arce, Fernando
Vela, María Elena
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
author Terán Arce, Fernando
author_facet Terán Arce, Fernando
Vela, María Elena
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
author_role author
author2 Vela, María Elena
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Oro
alkanethiol
scanning tunneling microscopy
dodecanethiol
butanethiol
monatomic
topic Ciencias Exactas
Química
Oro
alkanethiol
scanning tunneling microscopy
dodecanethiol
butanethiol
monatomic
dc.description.none.fl_txt_mv The structure and dynamics of dodecanethiol and butanethiol monolayers adsorbed on Au(111) at 298 K have been followed by in situ and ex situ scanning tunneling microscopy (STM). Results show that a gaslike initial adsorption stage where monatomic deep pit clustering occurs is followed by an advanced adsorption stage in which adlayer structural changes p(<i>n</i>×1) ⇒ (√3×√3)R30° ⇔ c(4×2) take place. The first change is interpreted as the motion of adsorbed molecules from fcc to hcp sites, and the second one is explained by the fluctuations of adsorbed molecules from hollow to bridge sites. The structural fluctuations at adsorbate domains occur simultaneously with fluctuations in the size of monatomic deep pits. These processes reveal the complexity of surface dynamics of alkanethiol adlayers on Au(111) at 298 K.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ciencias Exactas
description The structure and dynamics of dodecanethiol and butanethiol monolayers adsorbed on Au(111) at 298 K have been followed by in situ and ex situ scanning tunneling microscopy (STM). Results show that a gaslike initial adsorption stage where monatomic deep pit clustering occurs is followed by an advanced adsorption stage in which adlayer structural changes p(<i>n</i>×1) ⇒ (√3×√3)R30° ⇔ c(4×2) take place. The first change is interpreted as the motion of adsorbed molecules from fcc to hcp sites, and the second one is explained by the fluctuations of adsorbed molecules from hollow to bridge sites. The structural fluctuations at adsorbate domains occur simultaneously with fluctuations in the size of monatomic deep pits. These processes reveal the complexity of surface dynamics of alkanethiol adlayers on Au(111) at 298 K.
publishDate 1998
dc.date.none.fl_str_mv 1998-11-17
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/85101
url http://sedici.unlp.edu.ar/handle/10915/85101
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0743-7463
info:eu-repo/semantics/altIdentifier/doi/10.1021/la9805286
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
7203-7212
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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