Covalent organic frameworks (COFs) are promising hosts in heterogeneous catalysis. Herein, we report a dual metalation strategy in a single two-dimensional-COF TpBpy for performing a variety of C–N...

Heterogeneous catalysis in water has not been explored beyond certain advantages such as recyclability and recovery of the catalysts from the reaction medium. Moreover, poor yield, extremely low...

Nature Chemistry - Incorporating silicon into organic molecules and materials leads to interesting changes in electronic structure and properties; silabenzenes are attractive species for this...

Covalent organic frameworks (COFs) show great potential for many advanced applications on account of their structural uniqueness. To address the synthetic challenges, facile chemical routes to...

Covalent organic frameworks (COFs) have gained significant popularity in recent years due to their unique ability to provide a high surface area and customizable pore geometry and chemistry, making...

The limited structural diversity of three-dimensional covalent organic frameworks (3D COFs) greatly restricts their application exploration. Therefore, there is an urgent need to expand their library...

Two-dimensional (2D) covalent organic frameworks (COFs) are composed of structurally precise, permanently porous, layered macromolecular sheets, which are traditionally synthesized as polycrystalline...

Two-dimensional covalent organic frameworks (2D COFs) form as layered 2D polymers whose sheets stack through high-surface-area, noncovalent interactions that can give rise to different interlayer...

Peptide-based biomimetic catalysts are promising materials for efficient catalytic activity in various biochemical transformations. However, their lack of operational stability and fragile nature in...

Rational design, synthesis, and structural determination of 3D covalent organic frameworks (COFs) with novel topologies remain a formidable challenge. In this issue of Chem, Zhang and co-workers...

Two-dimensional covalent organic frameworks (2D COFs) are well-defined polymeric sheets that usually stack in an eclipsed mode via van der Waals forces. Extensive efforts have been made to manipulate...

The development of CO2 electroreduction (CO2RR) catalysts based on covalent organic frameworks (COFs) is an emerging strategy to produce synthetic fuels. However, our understanding on catalytic...

Nature Chemistry - The rational synthesis of organic nanotubes and their hierarchical architectures has remained challenging. Now, one-dimensional hollow covalent organic frameworks have been...

Nature - A protocol in which monomers are pre-organized using a reversible and removable urea linkage enables the production of covalent organic frameworks with higher crystallinity and porosity...

Covalent organic frameworks (COFs) are crystalline, nanoporous materials of interest for various applications, but current COF synthetic routes lead to insoluble aggregates which precludes processing...

Nature Chemistry - Room-temperature phosphorescence in organic solids is attractive for practical applications but remains rare. Now, highly phosphorescent boroxine-linked covalent organic...

The pore apertures dictate the guest accessibilities of the pores, imparting diverse functions to porous materials. It is highly desired to construct crystalline porous polymers with predesignable...

Structural conjugation greatly affects the optical and electronic properties of the COF photocatalyst. Herein, we show that 2D hydrazone COFs with either π-extended biphenyl (BPh–COF) or acetylene...

We leveraged the power of ChatGPT and Bayesian optimization in the development of a multi-AI-driven system, backed by seven large language model-based assistants and equipped with machine learning...

Ionic liquid (IL)-based aqueous two-phase systems (ATPSs) are formed by the phase separation of aqueous mixture of ILs. Owing to their unique interfacial properties and stable interfacial zone,...

Nature Chemistry - Covalent organic frameworks offer a highly tunable class of materials for a range of applications, although their dynamic structural transformations are challenging to analyse....

Isomerism in covalent organic frameworks (COFs) has scarcely been known. Here, for the first time we show 3D COFs with three framework isomers or polymorphs constructed from the same building blocks....

Three-dimensional (3D) covalent organic frameworks (COFs) are a new type of crystalline organic porous material, which have great application potential in various fields due to their complex pore...

We reported the directed structural transformation of a hydrogen-bonded organic framework (HOF) to covalent organic frameworks (COFs) via a mechanochemical drive for the first time. The X-ray single...

Nature Communications - In this study, benzotrithiophene-based covalent organic frameworks with spatially separated oxidative and reductive reaction centers are rationally designed for...

Advanced Functional Materials, part of the prestigious Advanced portfolio and a top-tier materials science journal, publishes outstanding research across the field.

Covalent organic frameworks (COFs) are an emerging class of crystalline porous materials with promising applications. However, the lack of an efficient, systematic, and scalable synthesis protocol to...

The construction of three-dimensional covalent organic frameworks (3D COFs) has proven to be very challenging, as their synthetic driving force mainly comes from the formation of covalent bonds. To...

Controllable synthesis of highly crystalline covalent organic frameworks (COFs) with unique structures is important for fundamental research and their practical applications. Herein, we report highly...

Development of new chemistry to simultaneously meet the demands for topology, connectivity, and functionality is highly desired in the research area of covalent organic frameworks (COFs). We explore...

Nature Communications - The authors design double shelled hollow superstructures from self-assembled CdSe/CdS nanorods in covalent organic frameworks for CO2 photo-reduction at a gas/solid interface.

Nanoporous materials such as covalent organic frameworks (COFs) are attractive due to their extremely high surface areas and porosities, but they are susceptible to pore collapse and loss of crysta...

The design and synthesis of crystalline porous materials is a frontier research area, especially in photo(electro)catalysis, due to their fascinating semiconducting properties. In recent years,...

Synthesis of covalent organic framework (COF) thin films on different supports with high crystallinity and porosity is crucial for their potential applications. We have designed a new synchronized...

Nature Reviews Chemistry - Linkage chemistry is crucial for controllable synthesis and the physicochemical properties of covalent organic frameworks. This Review describes linkage chemistry for the...

Hydrogen peroxide (H2O2), a valuable chemical, is widely used as a powerful oxidizing agent in chemical synthesis, pharmaceuticals, medical disinfection, and environmental treatment industries....

The design and synthesis of covalent organic frameworks (COFs) with excellent reusability are promising ways to advance practical applications in many fields, including as absorbents for environmen...

Covalent organic frameworks (COFs) are an extensively studied class of porous materials, which distinguish themselves from other porous polymers in their crystallinity and high degree of modularity,...

Advanced Functional Materials, part of the prestigious Advanced portfolio and a top-tier materials science journal, publishes outstanding research across the field.

The synthesis of crystalline polyphenylene covalent organic frameworks (COFs) was accomplished by linking fluorinated tris(4-acetylphenyl)benzene building units using aldol cyclotrimerization. The...

Two-dimensional (2D) covalent organic frameworks (COFs) with hierarchical porosity have been increasingly recognized as promising materials in various fields. Besides, the 2D COFs with kagome (kgm)...

Covalent organic framework nanosheets (CONs) with extremely thin thicknesses and inborn penetrating nanopores are attractive in transport-related applications. However, the strong tendency of π–π...

First, a new covalent organic framework (HUT9) with disulfide bonds have been synthesized, which can be grown in situ on carbon nanotubes (CNT) as separator modification material for Li–S batteries....

Despite their many advantages, covalent organic frameworks (COFs) built from three-dimensional monomers are synthetically difficult to functionalize. Herein, we provide a new synthetic approach to...

Rational control and understanding of isomerism are of significance but still remain a great challenge in reticular frameworks, in particular, for covalent organic frameworks (COFs) due to the...

Zinc-5,10,15,20-tetraethynylporphyrin (Zn-TEP) has been used as a building block to prepare one-dimensional (1D) chains, two-dimensional (2D) covalent organic frameworks, as well as nanotubes that...

As covalent organic frameworks (COFs) are coming of age, the lack of effective approaches to achieve crystalline and centimeter-scale-homogeneous COF films remains a significant bottleneck toward...

MCOFs (metal–covalent organic frameworks) hold high promise in combining the advantages of MOFs (metal–organic frameworks) and COFs (covalent organic frameworks), thus realizing a balanced mix of...

Synthesis of vinylene-linked 2D COFs via Knoevenagel polycondensation and in situ water-assisted Michael-addition-elimination: The addition of water can accelerate the Michael-addition-elimination...

Immobilization of fragile enzymes in crystalline porous materials offers new opportunities to expand the applications of biocatalysts. However, limited by the pore size and/or harsh synthesis...

Photocatalytic reduction of molecular oxygen is a promising route toward sustainable production of hydrogen peroxide (H2O2). This challenging process requires photoactive semiconductors enabling...

In order to capture and separate CO2 from the air or flue gas streams through nanoporous adsorbents, the influence of the humidity in these streams has to be taken into account as it hampers the...

Developing an electrocatalyst platform that can control the interplay among activity, selectivity, and stability at atomic precision remains a grand challenge. Here, we have synthesized highly...

Improving the electronic conductivity and the structural robustness of covalent organic frameworks (COFs) is paramount. Here, we covalently cross-link a 2D COF with polypyrrole (Ppy) chains to form a...

Nature Communications - When hydronium ions are enriched in confined water, short hydrogen bonds (SHBs) form due to the constrained space of excess protons between pairs of water molecules. Here...

Nature Communications - The donor-acceptor (D-A) interaction and exciton binding energy have been investigated for a series of D-A pairs by DFT calculations. Here, the authors synthesize the...

Metal-free CO2 photoreduction activities of sp2-carbon-linked covalent organic frameworks can be significantly improved by rationally regulating their intrinsic π-conjugation.

Incorporating redox-active quinones with linkers to form covalent organic frameworks (COFs) could effectively improve their electrochemical performances when used as electrode materials. Their stable...

Development of crystalline porous materials for selective CO2 adsorption and storage is in high demand to boost the carbon capture and storage (CCS) technology. In this regard, we have developed a...

Combining two or more consecutive reactions in one pot is a common approach for process development, as such a method involves cheap starting materials and allows in situ generation of a reactive...

Sp2-carbon-conjugated covalent organic frameworks (sp2c-COFs) have emerged as promising platforms for phototo–chemical energy conversion due to their tailorable optoelectronic properties, in-plane...

The imine-linked covalent organic frameworks (COFs) have garnered significant attention in various fields due to exceptional stability and polyamide structures, etc. However, the conventional...

The selective photoisomerization or photocyclization of stilbene to achieve value upgrade is of great significance in industry applications, yet it remains a challenge to accomplish both of them...