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Structural dynamics of a metal–organic framework induced by CO(2) migration in its non-uniform porous structure
Stimuli-responsive behaviors of flexible metal–organic frameworks (MOFs) make these materials promising in a wide variety of applications such as gas separation, drug delivery, and molecular sensing. Considerable efforts have been made over the last decade to understand the structural changes of fle...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6397191/ https://www.ncbi.nlm.nih.gov/pubmed/30824710 http://dx.doi.org/10.1038/s41467-019-08939-y |
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author | Zhao, Pu Fang, Hong Mukhopadhyay, Sanghamitra Li, Aurelia Rudić, Svemir McPherson, Ian J. Tang, Chiu C. Fairen-Jimenez, David Tsang, S. C. Edman Redfern, Simon A. T. |
author_facet | Zhao, Pu Fang, Hong Mukhopadhyay, Sanghamitra Li, Aurelia Rudić, Svemir McPherson, Ian J. Tang, Chiu C. Fairen-Jimenez, David Tsang, S. C. Edman Redfern, Simon A. T. |
author_sort | Zhao, Pu |
collection | PubMed |
description | Stimuli-responsive behaviors of flexible metal–organic frameworks (MOFs) make these materials promising in a wide variety of applications such as gas separation, drug delivery, and molecular sensing. Considerable efforts have been made over the last decade to understand the structural changes of flexible MOFs in response to external stimuli. Uniform pore deformation has been used as the general description. However, recent advances in synthesizing MOFs with non-uniform porous structures, i.e. with multiple types of pores which vary in size, shape, and environment, challenge the adequacy of this description. Here, we demonstrate that the CO(2)-adsorption-stimulated structural change of a flexible MOF, ZIF-7, is induced by CO(2) migration in its non-uniform porous structure rather than by the proactive opening of one type of its guest-hosting pores. Structural dynamics induced by guest migration in non-uniform porous structures is rare among the enormous number of MOFs discovered and detailed characterization is very limited in the literature. The concept presented in this work provides new insights into MOF flexibility. |
format | Online Article Text |
id | pubmed-6397191 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-63971912019-03-04 Structural dynamics of a metal–organic framework induced by CO(2) migration in its non-uniform porous structure Zhao, Pu Fang, Hong Mukhopadhyay, Sanghamitra Li, Aurelia Rudić, Svemir McPherson, Ian J. Tang, Chiu C. Fairen-Jimenez, David Tsang, S. C. Edman Redfern, Simon A. T. Nat Commun Article Stimuli-responsive behaviors of flexible metal–organic frameworks (MOFs) make these materials promising in a wide variety of applications such as gas separation, drug delivery, and molecular sensing. Considerable efforts have been made over the last decade to understand the structural changes of flexible MOFs in response to external stimuli. Uniform pore deformation has been used as the general description. However, recent advances in synthesizing MOFs with non-uniform porous structures, i.e. with multiple types of pores which vary in size, shape, and environment, challenge the adequacy of this description. Here, we demonstrate that the CO(2)-adsorption-stimulated structural change of a flexible MOF, ZIF-7, is induced by CO(2) migration in its non-uniform porous structure rather than by the proactive opening of one type of its guest-hosting pores. Structural dynamics induced by guest migration in non-uniform porous structures is rare among the enormous number of MOFs discovered and detailed characterization is very limited in the literature. The concept presented in this work provides new insights into MOF flexibility. Nature Publishing Group UK 2019-03-01 /pmc/articles/PMC6397191/ /pubmed/30824710 http://dx.doi.org/10.1038/s41467-019-08939-y Text en © The Author(s) 2019 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 Zhao, Pu Fang, Hong Mukhopadhyay, Sanghamitra Li, Aurelia Rudić, Svemir McPherson, Ian J. Tang, Chiu C. Fairen-Jimenez, David Tsang, S. C. Edman Redfern, Simon A. T. Structural dynamics of a metal–organic framework induced by CO(2) migration in its non-uniform porous structure |
title | Structural dynamics of a metal–organic framework induced by CO(2) migration in its non-uniform porous structure |
title_full | Structural dynamics of a metal–organic framework induced by CO(2) migration in its non-uniform porous structure |
title_fullStr | Structural dynamics of a metal–organic framework induced by CO(2) migration in its non-uniform porous structure |
title_full_unstemmed | Structural dynamics of a metal–organic framework induced by CO(2) migration in its non-uniform porous structure |
title_short | Structural dynamics of a metal–organic framework induced by CO(2) migration in its non-uniform porous structure |
title_sort | structural dynamics of a metal–organic framework induced by co(2) migration in its non-uniform porous structure |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6397191/ https://www.ncbi.nlm.nih.gov/pubmed/30824710 http://dx.doi.org/10.1038/s41467-019-08939-y |
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