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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...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Royal Society of Chemistry
2016
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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. |
format | Online Article Text |
id | pubmed-5477014 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
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
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title_full | Solvent-dependent conductance decay constants in single cluster junctions
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title_fullStr | Solvent-dependent conductance decay constants in single cluster junctions
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title_full_unstemmed | Solvent-dependent conductance decay constants in single cluster junctions
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title_short | Solvent-dependent conductance decay constants in single cluster junctions
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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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