Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface

Autores
Cometto, Fernando Pablo; Kern, Klaus; Lingenfelder, Magalí Alejandra
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We use the electric field in a scanning tunneling microscope to manipulate the transition between open and close packed 2D supramolecular networks of neutral molecules in nonpolar apolar media. We found that while the magnitude of the applied field is not decisive, it is the sign of the polarization that needs to be maintained to select one particular polymorph. Moreover, the switching is independent of the solvent used and fully reversible. We propose that the orientation of the surface dipole determined by the electric field might favor different conformational-depended charge transfer mechanisms of the adsorbates to the surface, inducing open (closed) structures for negative (positive) potentials. Our results show new avenues for the use of local fields to select the polymorphic outcome of supramolecular assemblies at the solid/liquid interface. The effect has potential to control locally the capture and release of analytes in host-guest systems and the 2D morphology in multicomponent layers.
Fil: Cometto, Fernando Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Institut de Physique de la Matière Condensée; Suiza. Max Planck-EPFL Laboratory for Molecular Nanoscience; Suiza
Fil: Kern, Klaus. Institut de Physique de la Matière Condensée; Suiza. Max-Planck-Institut für Festkörperforschung; Alemania
Fil: Lingenfelder, Magalí Alejandra. Institut de Physique de la Matière Condensée; Suiza. Max Planck-EPFL Laboratory for Molecular Nanoscience; Suiza
Materia
Molecular switch
Phase behavior
Scanning tunneling microscopy (STM)
Self-assembly
Surface science
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/43565
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/43565
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Local Conformational Switching of Supramolecular Networks at the Solid/Liquid InterfaceCometto, Fernando PabloKern, KlausLingenfelder, Magalí AlejandraMolecular switchPhase behaviorScanning tunneling microscopy (STM)Self-assemblySurface sciencehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We use the electric field in a scanning tunneling microscope to manipulate the transition between open and close packed 2D supramolecular networks of neutral molecules in nonpolar apolar media. We found that while the magnitude of the applied field is not decisive, it is the sign of the polarization that needs to be maintained to select one particular polymorph. Moreover, the switching is independent of the solvent used and fully reversible. We propose that the orientation of the surface dipole determined by the electric field might favor different conformational-depended charge transfer mechanisms of the adsorbates to the surface, inducing open (closed) structures for negative (positive) potentials. Our results show new avenues for the use of local fields to select the polymorphic outcome of supramolecular assemblies at the solid/liquid interface. The effect has potential to control locally the capture and release of analytes in host-guest systems and the 2D morphology in multicomponent layers.Fil: Cometto, Fernando Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Institut de Physique de la Matière Condensée; Suiza. Max Planck-EPFL Laboratory for Molecular Nanoscience; SuizaFil: Kern, Klaus. Institut de Physique de la Matière Condensée; Suiza. Max-Planck-Institut für Festkörperforschung; AlemaniaFil: Lingenfelder, Magalí Alejandra. Institut de Physique de la Matière Condensée; Suiza. Max Planck-EPFL Laboratory for Molecular Nanoscience; SuizaAmerican Chemical Society2015-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43565Cometto, Fernando Pablo; Kern, Klaus; Lingenfelder, Magalí Alejandra; Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface; American Chemical Society; ACS Nano; 9; 5; 4-2015; 5544-55501936-0851CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/acsnano.5b01658info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acsnano.5b01658info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:36Zoai:ri.conicet.gov.ar:11336/43565instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:48:37.048CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface
title Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface
spellingShingle Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface
Cometto, Fernando Pablo
Molecular switch
Phase behavior
Scanning tunneling microscopy (STM)
Self-assembly
Surface science
title_short Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface
title_full Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface
title_fullStr Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface
title_full_unstemmed Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface
title_sort Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface
dc.creator.none.fl_str_mv Cometto, Fernando Pablo
Kern, Klaus
Lingenfelder, Magalí Alejandra
author Cometto, Fernando Pablo
author_facet Cometto, Fernando Pablo
Kern, Klaus
Lingenfelder, Magalí Alejandra
author_role author
author2 Kern, Klaus
Lingenfelder, Magalí Alejandra
author2_role author
author
dc.subject.none.fl_str_mv Molecular switch
Phase behavior
Scanning tunneling microscopy (STM)
Self-assembly
Surface science
topic Molecular switch
Phase behavior
Scanning tunneling microscopy (STM)
Self-assembly
Surface science
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We use the electric field in a scanning tunneling microscope to manipulate the transition between open and close packed 2D supramolecular networks of neutral molecules in nonpolar apolar media. We found that while the magnitude of the applied field is not decisive, it is the sign of the polarization that needs to be maintained to select one particular polymorph. Moreover, the switching is independent of the solvent used and fully reversible. We propose that the orientation of the surface dipole determined by the electric field might favor different conformational-depended charge transfer mechanisms of the adsorbates to the surface, inducing open (closed) structures for negative (positive) potentials. Our results show new avenues for the use of local fields to select the polymorphic outcome of supramolecular assemblies at the solid/liquid interface. The effect has potential to control locally the capture and release of analytes in host-guest systems and the 2D morphology in multicomponent layers.
Fil: Cometto, Fernando Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Institut de Physique de la Matière Condensée; Suiza. Max Planck-EPFL Laboratory for Molecular Nanoscience; Suiza
Fil: Kern, Klaus. Institut de Physique de la Matière Condensée; Suiza. Max-Planck-Institut für Festkörperforschung; Alemania
Fil: Lingenfelder, Magalí Alejandra. Institut de Physique de la Matière Condensée; Suiza. Max Planck-EPFL Laboratory for Molecular Nanoscience; Suiza
description We use the electric field in a scanning tunneling microscope to manipulate the transition between open and close packed 2D supramolecular networks of neutral molecules in nonpolar apolar media. We found that while the magnitude of the applied field is not decisive, it is the sign of the polarization that needs to be maintained to select one particular polymorph. Moreover, the switching is independent of the solvent used and fully reversible. We propose that the orientation of the surface dipole determined by the electric field might favor different conformational-depended charge transfer mechanisms of the adsorbates to the surface, inducing open (closed) structures for negative (positive) potentials. Our results show new avenues for the use of local fields to select the polymorphic outcome of supramolecular assemblies at the solid/liquid interface. The effect has potential to control locally the capture and release of analytes in host-guest systems and the 2D morphology in multicomponent layers.
publishDate 2015
dc.date.none.fl_str_mv 2015-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/43565
Cometto, Fernando Pablo; Kern, Klaus; Lingenfelder, Magalí Alejandra; Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface; American Chemical Society; ACS Nano; 9; 5; 4-2015; 5544-5550
1936-0851
CONICET Digital
CONICET
url http://hdl.handle.net/11336/43565
identifier_str_mv Cometto, Fernando Pablo; Kern, Klaus; Lingenfelder, Magalí Alejandra; Local Conformational Switching of Supramolecular Networks at the Solid/Liquid Interface; American Chemical Society; ACS Nano; 9; 5; 4-2015; 5544-5550
1936-0851
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/acsnano.5b01658
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acsnano.5b01658
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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