Construction of Covalent Organic Frameworks via Multicomponent Reactions

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(3), P. 1475 - 1496

Published: Jan. 16, 2023

Multicomponent reactions (MCRs) combine at least three reactants to afford the desired product in a highly atom-economic way and are therefore viewed as efficient one-pot combinatorial synthesis tools allowing one significantly boost molecular complexity diversity. Nowadays, MCRs no longer confined organic have found applications materials chemistry. In particular, can be used prepare covalent frameworks (COFs), which crystalline porous assembled from monomers exhibit broad range of properties applications. This synthetic approach retains advantages small-molecule MCRs, not only strengthening skeletal robustness COFs, but also providing additional driving forces for their crystallization, has been series robust COFs with diverse The present perspective article provides general background discusses types employed COF date, addresses related critical challenges future perspectives inspire MCR-based design new promote further progress this emerging field.

Language: Английский

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Self-assembled stereomutation with supramolecular chirality inversion

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(13), P. 4443 - 4487

Published: Jan. 1, 2023

Supramolecular chirality inversion is closely related to biological and chemical self-assembly systems. This review highlights the fundamental principles, various strategies, promising applications of supramolecular inversion.

Language: Английский

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Facile Microwave-Assisted Synthesis of 2D Imine-Linked Covalent Organic Frameworks for Exceptional Iodine Capture

Precision Chemistry, Journal Year: 2023, Volume and Issue: 1(4), P. 233 - 240

Published: March 17, 2023

Covalent organic frameworks (COFs) have emerged as auspicious porous adsorbents for radioiodine capture. However, their conventional solvothermal synthesis demands multiday synthetic times and anaerobic conditions, largely hampering practical use. To tackle these challenges, we present a facile microwave-assisted of 2D imine-linked COFs, Mw-TFB-BD-X, (X = -CH3 -OCH3) under air within just 1 h. The resultant COFs possessed higher crystallinity, better yields, more uniform morphology than counterparts. Remarkably, Mw-TFB-BD-CH3 Mw-TFB-BD-OCH3 exhibited exceptional iodine adsorption capacities 7.83 g g-1 7.05 g-1, respectively, placing them among the best-performing COF static vapor Moreover, can be reused 5 with no apparent loss in capacity. exceptionally high excellent reusability were mainly attributed to spherical enhanced chemical stability due in-built electron-donating groups, despite low surface areas. This work establishes benchmark developing advanced that combine fast kinetics, capacity, reusability, rapid synthesis, set appealing features remain challenging merge so far.

Language: Английский

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CuS/Co-Ferrocene-MOF Nanocomposites for Photothermally Enhanced Chemodynamic Antibacterial Therapy

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(9), P. 10998 - 11007

Published: April 29, 2024

Infections caused by bacteria pose a serious threat to public health, and there is need for numerous innovative, antibiotic-free antimicrobial medicines. Herein, we describe the synthesis of CuS/Co-ferrocene-MOF (CuS/Co-Fc-MOF) nanocomposites, formed coupling CuS nanoparticles (NPs) two-dimensional (2D) Co-Fc-MOF nanosheets, that constitutes an platform capable near-infrared (NIR) photothermal promotion chemodynamic antibacterial. 2D CuS/Co-Fc-MOF nanocomposites consist nanosheets with dimensions approximately 100–200 nm thicknesses 13.1–15.6 nm, where NPs, size about 8 are excellently dispersed on surface nanosheets. The diverse valence states cobalt iron in enable them undergo Fenton-like reactions H2O2, thus generating highly oxidizing ·OH therapy (CDT). utilization local plasmonic resonance effect NPs enables enhancement CDT activity under laser irradiation. More importantly, can achieve rapid (15 min) NIR laser-assisted killing both S. aureus E. coli bacterial infection microenvironment compared Therefore, be employed as promising nanoagent promote photothermally augmented antibacterial therapy.

Language: Английский

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Chiral Memory in Dynamic Transformation from Porous Organic Cages to Covalent Organic Frameworks for Enantiorecognition Analysis

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(11), P. 7594 - 7604

Published: March 11, 2024

The preservation of chirality during a transformation process, known as the "chiral memory" effect, has garnered significant attention across multiple research disciplines. Here, we first report retention original chiral structure dynamic covalent chemistry (DCC)-induced structural from porous organic cages into frameworks (COFs). A total six two-dimensional COFs constructed by entirely achiral building blocks were obtained through DCC-induced substitution linkers in homochiral cage (CC3-R or -S) using amine monomers. Homochirality these resulted construction 3-fold-symmetric benzene-1,3,5-methanimine cores with propeller-like configuration one single-handedness throughout cage-to-COF transformation. can be further utilized fluorescence sensors stationary phases for gas chromatography high enantioselectivity. present study thus highlighted great potential to expand scope functional materials via crystal-to-crystal memory effect.

Language: Английский

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Nanofibrous Porous Organic Polymers and Their Derivatives: From Synthesis to Applications

Advanced Science, Journal Year: 2024, Volume and Issue: 11(19)

Published: March 12, 2024

Abstract Engineering porous organic polymers (POPs) into 1D morphology holds significant promise for diverse applications due to their exceptional processability and increased surface contact enhanced interactions with guest molecules. This article reviews the latest developments in nanofibrous POPs derivatives, encompassing polymer nanofibers, composites, POPs‐derived carbon nanofibers. The review delves design fabrication strategies, elucidates formation mechanisms, explores functional attributes, highlights promising applications. first section systematically outlines two primary approaches of POPs, i.e., direct bulk synthesis electrospinning technology. Both routes are discussed compared terms template utilization post‐treatments. Next, performance derivatives reviewed including water treatment, water/oil separation, gas adsorption, energy storage, heterogeneous catalysis, microwave absorption, biomedical systems. Finally, highlighting existent challenges offering future prospects concluded.

Language: Английский

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Emergent induced circularly polarized luminescence in host–guest crystalline porous assemblies

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 514, P. 215859 - 215859

Published: May 9, 2024

Language: Английский

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Raising the Asymmetric Catalytic Efficiency of Chiral Covalent Organic Frameworks by Tuning the Pore Environment

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(8), P. 10661 - 10670

Published: Feb. 20, 2024

Chiral covalent organic frameworks (COFs) hold considerable promise in the realm of heterogeneous asymmetric catalysis. However, fine-tuning pore environment to enhance both activity and stereoselectivity chiral COFs such applications remains a formidable challenge. In this study, we have successfully designed synthesized series clover-shaped, hydrazone-linked COFs, each with varying number accessible pyrrolidine catalytic sites. Remarkably, efficiencies these aldol reaction between cyclohexanone 4-nitrobenzaldehyde correlate well sites within frameworks. The COF featuring nearly one moiety at nodal point demonstrated excellent yields enantiomeric excess (ee) values, reaching up 97 83%, respectively. findings not only underscore profound impact deliberately controlled on but also offer new perspective for design synthesis advanced efficient

Language: Английский

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Heterostructural covalent organic framework/polymer composite materials: Recent advances in multidisciplinary applications

Nano Today, Journal Year: 2024, Volume and Issue: 55, P. 102211 - 102211

Published: March 4, 2024

Language: Английский

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A Facile Micelle-Assisted Self-Assembly Method to Covalent Organic Framework Helical Nanoarchitectures

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

We present a micelle-assisted self-assembly strategy for synthesizing covalent organic framework (COF) helical hollow nanoribbons by using achiral monomers and surfactants. The process involves polymerization of nanowires within rod-like micelle cores, followed their attachment to form solvothermal crystallization create COF architectures. This method allows the controllable synthesis nanostructures with tunable pitch morphology can be extended other architectures variation amine monomer. provides new insights into designing building blocks micellar systems.

Language: Английский

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