Benzodiazole-Based Covalent Organic Frameworks for Enhanced Photocatalytic Dehalogenation of Phenacyl Bromide Derivatives

Published: July 25, 2024

Covalent organic frameworks (COFs) have garnered significant interest within the scientific community due to their distinctive ability act as semiconductors responsive visible light. This unique attribute makes them up-and-coming candidates for facilitating photocatalytic reactions. Herein, two donor-acceptor COFs, TPE-BSD-COF and TPE-BD-COF, been designed synthesized by incorporating electron-rich tetraphenylethylene electron-deficient benzoselenadiazole benzothiadiazole units into framework through a Schiff-base polycondensation reaction. Both COFs exhibits exceptional crystallinity enduring porosity. TPE-BD-COF exhibit broad light absorption capabilities, narrow optical band gap, low electrochemical impedance spectrum (EIS) levels, indicating that are effective heterogeneous photocatalysts reductive dehalogenation of benzoyl bromide derivatives under blue LED irradiation. achieved high yield 98% 95%, respectively, only one hour.

Language: Английский

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Converting the covalent organic framework linkage from hydrazone to thiadiazole toward blue light-powered selective conversion of organic sulfides

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(36), P. 24144 - 24155

Published: Jan. 1, 2024

TDA-COF, a triazine-based COF with an irreversible thiadiazole linkage, swiftly carries out the blue light-powered selective conversion of thioanisoles O 2 .

Language: Английский

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Zwitterionic adsorbents derived from self-Exfoliated ionic covalent organic frameworks for efficient Co-Removal of anionic and cationic radionuclides

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154882 - 154882

Published: Aug. 17, 2024

Language: Английский

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Benzodiazole-Based Covalent Organic Frameworks for Enhanced Photocatalytic Dehalogenation of Phenacyl Bromide Derivatives

Polymers, Journal Year: 2024, Volume and Issue: 16(18), P. 2578 - 2578

Published: Sept. 12, 2024

Covalent organic frameworks (COFs) have garnered significant interest within the scientific community due to their distinctive ability act as semiconductors responsive visible light. This unique attribute makes them up-and-coming candidates for facilitating photocatalytic reactions. Herein, two donor-acceptor COFs, TPE-BSD-COF and TPE-BD-COF, been designed synthesized by incorporating electron-rich tetraphenylethylene electron-deficient benzoselenadiazole benzothiadiazole units into framework through a Schiff-base polycondensation reaction. Both COFs exhibit exceptional crystallinity enduring porosity. TPE-BD-COF broad light absorption capabilities, narrow optical band gap, low electrochemical impedance spectrum (EIS) levels, indicating that are effective heterogeneous photocatalysts reductive dehalogenation of phenacyl bromide derivatives under blue LED irradiation. A high yield 98% 95% was achieved catalysts, respectively, only one hour.

Language: Английский

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Orientation-Dependent Photocatalysis of Imine-Linked Covalent Organic Frameworks Based on Thienothiophenes for Oxidation of Amines to Imines

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 17, 2024

Toward visible light photocatalysis, covalent organic frameworks (COFs) have recently garnered growing attention. The effect of different orientations imine imine-linked COFs on photocatalysis should be elucidated. Here, two are developed with 2,5-diphenylthieno[3,2-

Language: Английский

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