Influence of π–π interactions on organic photocatalytic materials and their performance

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A comprehensive review is provided on the impact, construction strategies and applications of π–π interactions in field photocatalysis.

Language: Английский

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Boosting lignin‐based photocatalyst with photocorrosion resistance for efficient H₂O₂ production via hetero‐interfacial π‐π stacking channels

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 6, 2025

Abstract As the most abundant renewable aromatic biopolymer resource on Earth, lignin has become a cutting‐edge research hotspot in clean photocatalysis, thanks to distinct highest occupied molecular‐orbital and lowest unoccupied energy levels driven by major β‐O‐4 linked bonds. However, complex spatial architecture of functional groups, represented benzene rings 3D intertwined macromolecular chains lignin, challenge enhancing carrier separation efficiency remain persistent obstacles hindering development lignin‐based photocatalysts. Herein, strategy constructing nanosphere‐graphene oxide heterointerfaces (EL‐GO) is proposed comprehensively enhance efficacy groups facilitate photoelectron migration modes. The recombination time light‐excited photoelectrons effectively prolonged π‐π interactions between “Donor site” “Acceptor regions, along with directional EL GO. photocatalytic H 2 O production using EL‐GO significantly enhanced under protective mechanism To assess its potential, prospect estimation lake containing various pollutants metal ions was conducted, simulating real water conditions. This pioneering engineering effort aims curb excessive consumption fossil fuels explore green applications thereby “carbon‐neutral” feedstock system.

Language: Английский

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Photocatalytic deuterocarboxylation of alkynes with oxalate

Chemical Science, Journal Year: 2024, Volume and Issue: 15(32), P. 13041 - 13048

Published: Jan. 1, 2024

Herein, a catalytic photoredox-neutral strategy for alkyne deuterocarboxylation with tetrabutylammonium oxalate as the carbonyl source and D

Language: Английский

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Photoredox-Neutral Deoxygenative Carboxylation of Acylated Alcohols with Tetrabutylammonium Oxalate

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(16), P. 11967 - 11973

Published: July 26, 2024

Herein, a photoredox-neutral strategy for carboxylation of acylated alcohols via C(sp3)–O bond activation and cleavage with tetrabutylammonium oxalate (TBAO) as the carbonyl source reductant well promoter is described. Neither pre-established CO2 atmosphere nor external electron donors are required TBAO crucial transformation. Various primary, secondary, tertiary could be smoothly converted to corresponding aryl acetic acids, which core structures diverse pharmaceutical drugs.

Language: Английский

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EDA complexation of two donor molecules initiating radical cation cyclizations

Synthesis, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Abstract In this study, a catalyst-free EDA complexation of two donor molecules using an acidic solvent is presented. The electron-rich aromatic compound (E)-anethole slowly protonated by the hexafluoroisopropanol (HFIP), leading to rapid formation photoactive complex between and another molecule. This resulting initiates radical chain cyclization reactions under green light irradiation.

Language: Английский

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Visible-light-induced dual catalysis for divergent reduction of nitro compounds with CO2 radical anion

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 110899 - 110899

Published: Jan. 1, 2025

Language: Английский

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Different Stacking Types in a Single Hybrid Cocrystal System: π···π- and π–Hole-Based Organic–Inorganic Planar Assemblies

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

The planar bis-chelated complex [Pd(N∩O)2] (1; N∩O = 4-MeC5H3NNC(O)NMe2) exhibits two distinct stacking modes with electron-deficient aromatics: π···π hexafluorobenzene (C6F6) versus charge-transfer π–hole interactions 1,2,4,5-tetracyanobenzene (TCB). Cocrystallization of the C6F6 or TCB yields cocrystals 1·3(C6F6) and 1·2TCB, respectively, which display different colors patterns despite similar structural motifs. Comprehensive analysis using X-ray diffraction, combined quantum theory atoms-in-molecules (QTAIM), an independent gradient model based on Hirshfeld partition (IGMH), extended transition state natural orbital for chemical valence charge displacement function (ETS-NOCV/CDF), many-body interaction analysis, symmetry-adapted perturbation (SAPT), reveals fundamentally mechanisms. In 1·3(C6F6), is primarily governed by intermolecular polarization without significant transfer, dispersion forces contributing approximately 70% attractive energy. contrast, 1·2TCB pronounced transfer (35 me) inductive components alongside forces, characteristic interactions. This dichotomy in behavior provides new insights into nature organic–inorganic assemblies demonstrates that seemingly can arise from distinctly combinations noncovalent essential rational crystal engineering hybrid materials.

Language: Английский

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Unusual 1,1‐Dicarboxylation Selectivity in the Domino Hydrocarboxylation of Alkynes with Formate and Application in Polyimide Photoresists

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

We report for the first time a photoinduced domino 1,1-dicarboxylation of alkynes synthesis malonic acid derivatives using cesium formate solution (80% w/w in water), which is different from previous 1,2-dicarboxylation methods that usually produce succinic acids. Cesium malonate precipitated directly diluted reaction mixture and was collected by filtration without further purification. Interestingly, solid with additional water led to mono-carboxylation product. The solubility alkaline environment are two key factors contributing outcome. A series acids, propionic acids drug intermediates were synthesized good yields. Mechanism experiments DFT calculations indicate formed through α-selective addition CO2 •- cinnamate intermediate. This method enables direct preparation water-soluble carboxylate-functionalized molecules polymers hydrophobic alkyne-containing precursors, showing potential usability photolithography semiconductor manufacturing.

Language: Английский

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A review on graphene-based inorganic nanostructures: Synthesis, functionalization, and applications in photocatalytic degradation and electrochemical sensing of pollutants

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114398 - 114398

Published: March 1, 2025

Language: Английский

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Synthetic application of oxalate salts for visible-light-induced radical transformations

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111224 - 111224

Published: April 1, 2025

Language: Английский

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