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



Zhu, Qiang, Wang, Xue, Clowes, Rob ORCID: 0009-0002-4686-2119, Cui, Peng, Chen, Linjiang, Little, Marc A and Cooper, Andrew I ORCID: 0000-0003-0201-1021
(2020) 3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes. Journal of the American Chemical Society, 142 (39). pp. 16842-16848. ISSN 0002-7863, 1520-5126

Access the full-text of this item by clicking on the Open Access link.
[thumbnail of jacs.0c07732.pdf] Text
jacs.0c07732.pdf - Published version

Download (2MB) | Preview

Abstract

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-NH2) 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 CO2 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.

Item Type: Article
Uncontrolled Keywords: 3403 Macromolecular and Materials Chemistry, 34 Chemical Sciences
Depositing User: Symplectic Admin
Date Deposited: 14 Sep 2020 10:46
Last Modified: 07 Dec 2024 10:52
DOI: 10.1021/jacs.0c07732
Open Access URL: https://doi.org/10.1021/jacs.0c07732
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3101137