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Materials
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Novel Covalent Organic Frameworks: Design, Synthesis and Properties
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Novel Covalent Organic Frameworks: Design, Synthesis and Properties

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Porous Materials".

Deadline for manuscript submissions: closed (16 November 2021) | Viewed by 4457

Special Issue Editor

Prof. Dr. John Hoberg

E-Mail Website
Guest Editor
Chemistry Department, University of Wyoming, Laramie, WY, USA
Interests: organic chemistry; covalent organic frameworks; separations using 2D materials; chemistry of materials

Special Issue Information

Dear Colleagues,

Covalent Organic Frameworks (COFs) are two- and three-dimensional crystalline microporous organic solids synthesized from organic building blocks via covalent bonds. Distinct from other polymers is the ability to predesign the monomers to incorporate functionality and the shapes and sizes of the pores in the materials. The potential applications of these materials include gas separation and storage, water purification, organic solvent separation, catalysis, battery technologies, and electrochemistry. Compared with their counterparts (metal–organic frameworks (MOFs), zeolites, and porous polymers), the great variety offered by the design of monomers and their assembly allows for the systematic modification of their chemical composition, the pore functionalization, and the pore size, all of which affect their properties.

This Special Issue focuses on the design, synthesis, properties, and emerging applications of COFs. Articles describing unique designs and syntheses with the relationships between molecular structures and properties along with modern theoretical methods are welcome.

Prof. Dr. John Hoberg
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • covalent organic frameworks (COFs)
  • design and synthesis of COFs
  • computational studies on COFs
  • applications of COFs

Published Papers (1 paper)

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Research

10 pages, 5370 KiB  
Article
The Influence of Disorder in the Synthesis, Characterization and Applications of a Modifiable Two-Dimensional Covalent Organic Framework
by Jordan Brophy, Kyle Summerfield, Jiashi Yin, Jon Kephart, Joshua T. Stecher, Jeramie Adams, Takashi Yanase, Jason Brant, Katie Dongmei Li-Oakey, John O. Hoberg and Bruce A. Parkinson
Materials 2021, 14(1), 71; https://doi.org/10.3390/ma14010071 - 25 Dec 2020
Cited by 6 | Viewed by 4025
Abstract
Two-dimensional covalent organic frameworks (2D-COFs) have been of increasing interest in the past decade due to their porous structures that ideally can be highly ordered. One of the most common routes to these polymers relies on Schiff-base chemistry, i.e., the condensation reaction between [...] Read more.
Two-dimensional covalent organic frameworks (2D-COFs) have been of increasing interest in the past decade due to their porous structures that ideally can be highly ordered. One of the most common routes to these polymers relies on Schiff-base chemistry, i.e., the condensation reaction between a carbonyl and an amine. In this report, we elaborate on the condensation of 3,6-dibromobenzene-1,2,4,5-tetraamine with hexaketocyclohexane (HKH) and the subsequent carbonylation of the resulting COF, along with the possibility that the condensation reaction on HKH can result in a trans configuration resulting in the formation of a disordered 2D-COF. This strategy enables modification of COFs via bromine substitution reactions to place functional groups within the pores of the materials. Ion-sieving measurements using membranes from this COF, reaction of small molecules with unreacted keto groups along with modeling studies indicate disorder in the COF polymerization process. We also present a Monte Carlo simulation that demonstrates the influence of even small amounts of disorder upon both the 2D and 3D structure of the resulting COF. Full article
(This article belongs to the Special Issue Novel Covalent Organic Frameworks: Design, Synthesis and Properties)
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