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A family of lead clusters with precious metal cores
Gold nanoparticles have been used for centuries, both for decoration and in medical applications. More recently, many of the major advances in cluster chemistry have involved well-defined clusters containing tens or hundreds of atoms, either with or without a ligand shell. In this paper we report th...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7351731/ https://www.ncbi.nlm.nih.gov/pubmed/32651376 http://dx.doi.org/10.1038/s41467-020-17187-4 |
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author | Shu, Cong-Cong Morgan, Harry W. T. Qiao, Lei McGrady, John E. Sun, Zhong-Ming |
author_facet | Shu, Cong-Cong Morgan, Harry W. T. Qiao, Lei McGrady, John E. Sun, Zhong-Ming |
author_sort | Shu, Cong-Cong |
collection | PubMed |
description | Gold nanoparticles have been used for centuries, both for decoration and in medical applications. More recently, many of the major advances in cluster chemistry have involved well-defined clusters containing tens or hundreds of atoms, either with or without a ligand shell. In this paper we report the synthesis of two gold/lead clusters, [Au(8)Pb(33)](6−) and [Au(12)Pb(44)](8−), both of which contain nido [Au@Pb(11)](3−) icosahedra surrounding a core of Au atoms. Analogues of these large clusters are not found in the corresponding Ag chemistry: instead, the Ag-centered nido icosahedron, [Ag@Pb(11)](3−), is the only isolated product. The structural chemistry, along with the mass spectrometry which shows the existence of [Au(2)Pb(11)](2−) but not [Ag(2)Pb(11)](2−), leads us to propose that the former species is the key intermediate in the growth of the larger clusters. Density functional theory indicates that secondary π-type interactions between the [Au@Pb(11)](3−) ligands and the gold core play a significant part in stabilizing the larger clusters. |
format | Online Article Text |
id | pubmed-7351731 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-73517312020-07-13 A family of lead clusters with precious metal cores Shu, Cong-Cong Morgan, Harry W. T. Qiao, Lei McGrady, John E. Sun, Zhong-Ming Nat Commun Article Gold nanoparticles have been used for centuries, both for decoration and in medical applications. More recently, many of the major advances in cluster chemistry have involved well-defined clusters containing tens or hundreds of atoms, either with or without a ligand shell. In this paper we report the synthesis of two gold/lead clusters, [Au(8)Pb(33)](6−) and [Au(12)Pb(44)](8−), both of which contain nido [Au@Pb(11)](3−) icosahedra surrounding a core of Au atoms. Analogues of these large clusters are not found in the corresponding Ag chemistry: instead, the Ag-centered nido icosahedron, [Ag@Pb(11)](3−), is the only isolated product. The structural chemistry, along with the mass spectrometry which shows the existence of [Au(2)Pb(11)](2−) but not [Ag(2)Pb(11)](2−), leads us to propose that the former species is the key intermediate in the growth of the larger clusters. Density functional theory indicates that secondary π-type interactions between the [Au@Pb(11)](3−) ligands and the gold core play a significant part in stabilizing the larger clusters. Nature Publishing Group UK 2020-07-10 /pmc/articles/PMC7351731/ /pubmed/32651376 http://dx.doi.org/10.1038/s41467-020-17187-4 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Shu, Cong-Cong Morgan, Harry W. T. Qiao, Lei McGrady, John E. Sun, Zhong-Ming A family of lead clusters with precious metal cores |
title | A family of lead clusters with precious metal cores |
title_full | A family of lead clusters with precious metal cores |
title_fullStr | A family of lead clusters with precious metal cores |
title_full_unstemmed | A family of lead clusters with precious metal cores |
title_short | A family of lead clusters with precious metal cores |
title_sort | family of lead clusters with precious metal cores |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7351731/ https://www.ncbi.nlm.nih.gov/pubmed/32651376 http://dx.doi.org/10.1038/s41467-020-17187-4 |
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