Ionic Covalent Organic Frameworks: Design of a Charged Interface Aligned on 1D Channel Walls and Its Unusual Electrostatic Functions

Huang N, Wang P, Addicoat MA, Heine T, Jiang D (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 56

Pages Range: 4982-4986

Journal Issue: 18

DOI: 10.1002/anie.201611542

Abstract

Covalent organic frameworks (COFs) have emerged as a tailor-made platform for designing layered two-dimensional polymers. However, most of them are obtained as neutral porous materials. Here, we report the construction of ionic crystalline porous COFs with positively charged walls that enable the creation of well aligned yet spatially confined ionic interface. The unconventional reversed AA-stacking mode alternately orientates the cationic centers to both sides of the walls; the ionic interface endows COFs with unusual electrostatic functions. Because all of the walls are decorated with electric dipoles, the uptake of CO2 is enhanced by three fold compared to the neutral analog. By virtue of sufficient open space between cations, the ionic interface exhibits exceptional accessibility, efficiency, and selectivity in ion exchange to trap anionic pollutants. These findings suggest that construction of the ionic interface of COFs offers a new way to structural and functional designs.

Involved external institutions

Japan Advanced Institute of Science and Technology (JAIST) / 北陸先端科学技術大学院大学 JP Japan (JP) Universität Leipzig DE Germany (DE)

How to cite

APA:

Huang, N., Wang, P., Addicoat, M.A., Heine, T., & Jiang, D. (2017). Ionic Covalent Organic Frameworks: Design of a Charged Interface Aligned on 1D Channel Walls and Its Unusual Electrostatic Functions. Angewandte Chemie International Edition, 56(18), 4982-4986. https://doi.org/10.1002/anie.201611542

MLA:

Huang, Ning, et al. "Ionic Covalent Organic Frameworks: Design of a Charged Interface Aligned on 1D Channel Walls and Its Unusual Electrostatic Functions." Angewandte Chemie International Edition 56.18 (2017): 4982-4986.

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