3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes

[Image: see text] Three-dimensional (3D) covalent organic frameworks (COFs) are rare because there is a limited choice of organic building blocks that offer multiple reactive sites in a polyhedral geometry. Here, we synthesized an organic cage molecule (Cage-6-NH(2)) that was used as a triangular pr...

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Autores principales: Zhu, Qiang, Wang, Xue, Clowes, Rob, Cui, Peng, Chen, Linjiang, Little, Marc A., Cooper, Andrew I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7586335/
https://www.ncbi.nlm.nih.gov/pubmed/32893623
http://dx.doi.org/10.1021/jacs.0c07732
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author Zhu, Qiang
Wang, Xue
Clowes, Rob
Cui, Peng
Chen, Linjiang
Little, Marc A.
Cooper, Andrew I.
author_facet Zhu, Qiang
Wang, Xue
Clowes, Rob
Cui, Peng
Chen, Linjiang
Little, Marc A.
Cooper, Andrew I.
author_sort Zhu, Qiang
collection PubMed
description [Image: see text] Three-dimensional (3D) covalent organic frameworks (COFs) are rare because there is a limited choice of organic building blocks that offer multiple reactive sites in a polyhedral geometry. Here, we synthesized an organic cage molecule (Cage-6-NH(2)) that was used as a triangular prism node to yield the first cage-based 3D COF, 3D-CageCOF-1. This COF adopts an unreported 2-fold interpenetrated acs topology and exhibits reversible dynamic behavior, switching between a small-pore (sp) structure and a large-pore (lp) structure. It also shows high CO(2) uptake and captures water at low humidity (<40%). This demonstrates the potential for expanding the structural complexity of 3D COFs by using organic cages as the building units.
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spelling pubmed-75863352020-10-27 3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes Zhu, Qiang Wang, Xue Clowes, Rob Cui, Peng Chen, Linjiang Little, Marc A. Cooper, Andrew I. J Am Chem Soc [Image: see text] Three-dimensional (3D) covalent organic frameworks (COFs) are rare because there is a limited choice of organic building blocks that offer multiple reactive sites in a polyhedral geometry. Here, we synthesized an organic cage molecule (Cage-6-NH(2)) that was used as a triangular prism node to yield the first cage-based 3D COF, 3D-CageCOF-1. This COF adopts an unreported 2-fold interpenetrated acs topology and exhibits reversible dynamic behavior, switching between a small-pore (sp) structure and a large-pore (lp) structure. It also shows high CO(2) uptake and captures water at low humidity (<40%). This demonstrates the potential for expanding the structural complexity of 3D COFs by using organic cages as the building units. American Chemical Society 2020-09-06 2020-09-30 /pmc/articles/PMC7586335/ /pubmed/32893623 http://dx.doi.org/10.1021/jacs.0c07732 Text en This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
spellingShingle Zhu, Qiang
Wang, Xue
Clowes, Rob
Cui, Peng
Chen, Linjiang
Little, Marc A.
Cooper, Andrew I.
3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes
title 3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes
title_full 3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes
title_fullStr 3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes
title_full_unstemmed 3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes
title_short 3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes
title_sort 3d cage cofs: a dynamic three-dimensional covalent organic framework with high-connectivity organic cage nodes
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7586335/
https://www.ncbi.nlm.nih.gov/pubmed/32893623
http://dx.doi.org/10.1021/jacs.0c07732
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