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Solvent-dependent conductance decay constants in single cluster junctions

Single-molecule conductance measurements have focused primarily on organic molecular systems. Here, we carry out scanning tunneling microscope-based break-junction measurements on a series of metal chalcogenide Co(6)Se(8) clusters capped with conducting ligands of varying lengths. We compare these m...

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Autores principales: Choi, Bonnie, Capozzi, Brian, Ahn, Seokhoon, Turkiewicz, Ari, Lovat, Giacomo, Nuckolls, Colin, Steigerwald, Michael L., Venkataraman, Latha, Roy, Xavier
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5477014/
https://www.ncbi.nlm.nih.gov/pubmed/28660043
http://dx.doi.org/10.1039/c5sc02595h
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author Choi, Bonnie
Capozzi, Brian
Ahn, Seokhoon
Turkiewicz, Ari
Lovat, Giacomo
Nuckolls, Colin
Steigerwald, Michael L.
Venkataraman, Latha
Roy, Xavier
author_facet Choi, Bonnie
Capozzi, Brian
Ahn, Seokhoon
Turkiewicz, Ari
Lovat, Giacomo
Nuckolls, Colin
Steigerwald, Michael L.
Venkataraman, Latha
Roy, Xavier
author_sort Choi, Bonnie
collection PubMed
description Single-molecule conductance measurements have focused primarily on organic molecular systems. Here, we carry out scanning tunneling microscope-based break-junction measurements on a series of metal chalcogenide Co(6)Se(8) clusters capped with conducting ligands of varying lengths. We compare these measurements with those of individual free ligands and find that the conductance of these clusters and the free ligands have different decay constants with increasing ligand length. We also show, through measurements in two different solvents, 1-bromonaphthalene and 1,2,4-trichlorobenzene, that the conductance decay of the clusters depends on the solvent environment. We discuss several mechanisms to explain our observations.
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spelling pubmed-54770142017-06-28 Solvent-dependent conductance decay constants in single cluster junctions Choi, Bonnie Capozzi, Brian Ahn, Seokhoon Turkiewicz, Ari Lovat, Giacomo Nuckolls, Colin Steigerwald, Michael L. Venkataraman, Latha Roy, Xavier Chem Sci Chemistry Single-molecule conductance measurements have focused primarily on organic molecular systems. Here, we carry out scanning tunneling microscope-based break-junction measurements on a series of metal chalcogenide Co(6)Se(8) clusters capped with conducting ligands of varying lengths. We compare these measurements with those of individual free ligands and find that the conductance of these clusters and the free ligands have different decay constants with increasing ligand length. We also show, through measurements in two different solvents, 1-bromonaphthalene and 1,2,4-trichlorobenzene, that the conductance decay of the clusters depends on the solvent environment. We discuss several mechanisms to explain our observations. Royal Society of Chemistry 2016-04-01 2016-01-11 /pmc/articles/PMC5477014/ /pubmed/28660043 http://dx.doi.org/10.1039/c5sc02595h Text en This journal is © The Royal Society of Chemistry 2016 https://creativecommons.org/licenses/by-nc/3.0/This article is freely available. This article is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported Licence (CC BY-NC 3.0)
spellingShingle Chemistry
Choi, Bonnie
Capozzi, Brian
Ahn, Seokhoon
Turkiewicz, Ari
Lovat, Giacomo
Nuckolls, Colin
Steigerwald, Michael L.
Venkataraman, Latha
Roy, Xavier
Solvent-dependent conductance decay constants in single cluster junctions
title Solvent-dependent conductance decay constants in single cluster junctions
title_full Solvent-dependent conductance decay constants in single cluster junctions
title_fullStr Solvent-dependent conductance decay constants in single cluster junctions
title_full_unstemmed Solvent-dependent conductance decay constants in single cluster junctions
title_short Solvent-dependent conductance decay constants in single cluster junctions
title_sort solvent-dependent conductance decay constants in single cluster junctions
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5477014/
https://www.ncbi.nlm.nih.gov/pubmed/28660043
http://dx.doi.org/10.1039/c5sc02595h
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