Flexible Triboelectric Nanogenerators Based on Cadmium Metal–Organic Framework/Eethyl Cellulose Composites as Energy Harvesters for Selective Photoinduced Bromination Reaction

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

The fabrication of self-driven systems with flexibility and tunable output for organic photoinduction is highly desirable but challenging. In this study, a 3D cadmium metal-organic framework (Cd-MOF) synthesized used as filler ethyl cellulose (EC) to create mechanically durable flexible Cd-MOF@EC composite films. Due its well-established platform periodically precise structure nature, the outputs Cd-MOF-based TENG are much higher than those ligand-based TENGs. Furthermore, films different doping ratios Cd-MOF employed assemble Cd-MOF@EC-based triboelectric nanogenerators (TENGs). results reveal that ratio 10 wt.% in provides highest output. Subsequently, (FCEC-TENG), working contact-separation model, constructed harvest mechanical energy from human body, demonstrating excellent performance stability. harvested FCEC-TENG can directly illuminate 14 commercial white light-emitting diodes (LEDs), providing visible light bromination reaction, generating bromide good yield tolerance. This study presents an effective method constructing MOF-based self-powered photoinduced transformation systems.

Language: Английский

α-Amido Sulfonium Salts Provide a Platform for Photocatalytic Metal-Free Carbon–Carbon Bond Formation in Amides

ACS Catalysis, Journal Year: 2025, Volume and Issue: 15(10), P. 8345 - 8352

Published: May 5, 2025

α-Amido sulfonium salts are bench-stable precursors of α-amidyl radicals, prepared directly from tertiary amides. These largely unexplored engage in metal-free photocatalytic C(sp3)-C(sp2) and C(sp3)-C(sp3) bond formation cross-coupling reactions that realize the formal α-alkylation, α-alkenylation, α-arylation Fine-tuning conditions allows divergent access to important 1,4-dicarbonyl compounds, skipped unsaturated amides, α-heteroarylated thus showcasing role α-amido establishing a novel platform for amide functionalization. Preliminary mechanistic experiments support cycle which reduced form radicals couple with various electron-rich partners chemodivergent approach introduction complexity

Language: Английский

Visible-Light-Induced Intramolecular Radical Cyclization for the Synthesis of Benzimidazo-isoquinolineones and Pyrrolidones

Organic Letters, Journal Year: 2024, Volume and Issue: 26(51), P. 11184 - 11189

Published: Dec. 12, 2024

A visible-light-induced radical cyclization of α-brominated amides has been developed to construct benzimidazole[2,1-

Language: Английский