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Themed collection Covalent organic frameworks and organic cage structures

13 items
Editorial

Covalent organic frameworks and organic cage structures

Welcome to this CrystEngComm themed issue entitled “Covalent Organic Frameworks and Organic Cage Structures”.

Graphical abstract: Covalent organic frameworks and organic cage structures
Communication

Pore wall fluorescence labeling of covalent organic frameworks

A novel covalent organic framework (COF) based on terphenyldiboronic acid exhibiting open pores of about 4.1 nm is presented. The pore walls of the COF could be functionalized with a fluorescent dye.

Graphical abstract: Pore wall fluorescence labeling of covalent organic frameworks
Communication

Experimental and theoretical insight into the effect of fluorine substituents on the properties of azine linked covalent organic frameworks

Herein we report a combined experimental and computational study on the effect of fluorine atom incorporation on the materials properties of azine-linked COFs.

Graphical abstract: Experimental and theoretical insight into the effect of fluorine substituents on the properties of azine linked covalent organic frameworks
Communication

Construction of two heteropore covalent organic frameworks with Kagome lattices

Two novel covalent organic frameworks (COFs) bearing Kagome lattices have been fabricated through the condensations of a D2h symmetrical tetraaldehyde and C2 symmetrical aromatic diamines of various lengths.

Graphical abstract: Construction of two heteropore covalent organic frameworks with Kagome lattices
Communication

Flexible monomer-based covalent organic frameworks: design, structure and functions

A new flexible monomer-based COF has been designed and synthesized and its structure and gas adsorption properties have been carefully investigated.

Graphical abstract: Flexible monomer-based covalent organic frameworks: design, structure and functions
Communication

Sub-micron spheres of an imine-based covalent organic framework: supramolecular functionalization and water-dispersibility

Sub-micron spheres of an imine-based COF are formed in a fast and simple reaction and functionalized to increase its water dispersibility framework (sRT-COF-1).

Graphical abstract: Sub-micron spheres of an imine-based covalent organic framework: supramolecular functionalization and water-dispersibility
Open Access Paper

Modular assembly of porous organic cage crystals: isoreticular quasiracemates and ternary co-crystal

Co-crystallisation of helically chiral porous organic cage molecules has enabled the formation of isoreticular quasiracemates and a rare porous organic ternary co-crystal.

Graphical abstract: Modular assembly of porous organic cage crystals: isoreticular quasiracemates and ternary co-crystal
Paper

A quaternary-ammonium-functionalized covalent organic framework for anion conduction

A new anion conducting covalent organic framework (COF) was prepared by covalently tethering quaternary ammonium (QA) ions onto the pore walls of COF 1,3,5-triformylphloroglucinol-o-tolidine (TpBD-Me) through bromination and quaternization.

Graphical abstract: A quaternary-ammonium-functionalized covalent organic framework for anion conduction
Open Access Paper

Selective binding in different adsorption sites of a 2D covalent organic framework

Monolayer covalent organic frameworks selectively bind fullerenes and trichlorobenzene at different sites via different types of interactions.

Graphical abstract: Selective binding in different adsorption sites of a 2D covalent organic framework
Paper

Isoreticular covalent organic frameworks for hydrocarbon uptake and separation: the important role of monomer planarity

We report three isoreticular covalent organic frameworks (COFs) sharing identical two-dimensional layered structures but with different planarity of the building monomers, leading to various crystallinities, porosities and hydrocarbon uptake and separation performances.

Graphical abstract: Isoreticular covalent organic frameworks for hydrocarbon uptake and separation: the important role of monomer planarity
Paper

Computational screening of covalent organic frameworks for the capture of radioactive iodine and methyl iodide

Large-scale computational screening results show that COFs are promising materials for the capture of radioactive iodic contaminants from nuclear wastes.

Graphical abstract: Computational screening of covalent organic frameworks for the capture of radioactive iodine and methyl iodide
Paper

Precise elucidations of stacking manners of hydrogen-bonded two-dimensional organic frameworks composed of X-shaped π-conjugated systems

Stacking manners of 2D-nCOFs with a porous rhombic network framework was precisely characterized based on single crystal X-ray diffraction analysis.

Graphical abstract: Precise elucidations of stacking manners of hydrogen-bonded two-dimensional organic frameworks composed of X-shaped π-conjugated systems
Paper

Solid-state inclusion of C60 and C70 in a co-polymer induced by metal–ligand coordination of a Zn–porphyrin cage with a bis-pyridyl perylene derivative

We have conducted X-ray characterization of two unprecedented supramolecular solids involving three different components: a suitable Zn(II)–bisporphyrin cage, a bis-pyridyl perylene derivative and a fullerene.

Graphical abstract: Solid-state inclusion of C60 and C70 in a co-polymer induced by metal–ligand coordination of a Zn–porphyrin cage with a bis-pyridyl perylene derivative
13 items

About this collection

This themed issue focuses on the design strategies for the construction of porous organic materials, including covalent organic frameworks and organic cage structures with new physicochemical properties. There is also a focus on any associated challenges in terms of synthesis, crystallization and structure–property relationships of covalent organic frameworks and organic cage structures.
Guest Edited by Professors Rahul Banerjee and Neil Champness.

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