Cobalt complex with a tetradentate aminopyridine ligand: a single-component and efficient catalytic system for the cycloaddition reactions of CO₂ and epoxides

New Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A cobalt complex with a tetradentate aminopyridine ligand catalyzes the cycloaddition reactions of CO 2 and epoxides, constituting single-component, efficient solvent-free system.

Language: Английский

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Iron(III) Complexes with Pyridine Group Coordination and Dissociation Reversible Equilibrium: Cooperative Activation of CO₂ and Epoxides into Cyclic Carbonates

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(35), P. 16491 - 16506

Published: Aug. 20, 2024

Herein, a series of [ONSN]-type iron(III) complexes were synthesized. A binary catalytic system in combination with iron and tetrabutylammonium bromide (TBAB) exhibited high activity for the synthesis cyclic carbonates from CO

Language: Английский

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Imidazolium-based Ionic Liquid on magnetic yolk-shell mesoporous particles for CO2 valorization to cyclic carbonates

Emergent Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Language: Английский

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Bifunctional catalysts based on 2-amino-1,10-phenanthroline-containing podands for cyclic carbonates synthesis from CO2 and epoxides under mild conditions

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 579, P. 115019 - 115019

Published: March 22, 2025

Language: Английский

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Insights into the catalytic application of coordinated metal complexes in CO2 conversion via cycloaddition

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 142200 - 142200

Published: March 1, 2025

Language: Английский

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Room-Temperature and Atmospheric Pressure Coupling of Carbon Dioxide with Epoxides Catalyzed by Iodide Ions Confined in Nanopores of Periodic Mesoporous Organosilica

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Language: Английский

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Efficient fixation of CO2 with epoxides catalyzed by Mg(II)-N4 complexes

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 579, P. 115090 - 115090

Published: April 6, 2025

Language: Английский

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Solvent Free Ambient Pressure CO2 Cycloaddition Catalyzed by Cobalt‐Impregnated 2D‐Nanofibrous COFs

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

Published: Nov. 14, 2024

Abstract Covalent organic frameworks (COFs) constitute an evolving class of permanently porous and ordered materials, they have recently attracted increased interest due to their intriguing morphological features numerous applications in gas storage, adsorption, catalysis. However, low aqueous stabilities tedious syntheses generally hamper use heterogeneous Nonetheless, a capable water‐stable catalytic system for coupling CO 2 /epoxides generate industrially important cyclic carbonates is still great interest. Herein, exceedingly water‐ thermally stable 2D‐cobalt‐impregnated hydrazone‐linked fibrous COFs are reported as catalyst /epoxide reactions at ambient pressure. The functionalized cobalt (Co)‐doped demonstrated excellent activities with the high TONs (80925) TOFs (6466 h −1 ), outperforming catalysts We found that Co 2+ ions within COF matrix catalyze cycloaddition through density functional theory calculations. also confirmed structural stability consistent activity Co‐doped up ten repeating cycles.

Language: Английский

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Cycloaddition of natural epoxide and CO2 with the help of multi-nuclear phthalocyanine complexes attached to FPS as a nanosaramic

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 85, P. 102885 - 102885

Published: July 1, 2024

This study introduces a three-dimensional, densely packed amide polyphthalocyaninezinc, supported by fibrous phosphosilicate (FPS), for the first time (referred to as Complex@Zn-IL/FPS). The XPS and EDX images confirmed that Complex@Zn-IL nanosaramic was evenly distributed on FPS's surface. cycloaddition reaction from CO2 natural epoxide using Complex@Zn-IL/FPS catalysts reported. Furthermore, catalyst's structural heterogeneity examined various methods, including SEM, FT-IR, XPS, TEM, TGA. There no evidence of zinc leaching into fluid. In addition, hot filtration provided comprehensive understanding heterogeneous nature. practical straightforward reusability noted after completed.

Language: Английский

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Salophen-Type Schiff Bases Functionalized with Pyridinium Halide Units as Metal-Free Catalysts for Synthesis of Cyclic Carbonates from Carbon Dioxide and Terminal Epoxides

Catalysts, Journal Year: 2024, Volume and Issue: 14(10), P. 658 - 658

Published: Sept. 24, 2024

Objectives: Salophen-type Schiff bases functionalized with 4-(dimethylamino)pyridinium halide units are shown to be effective single-component catalysts for the synthesis of cyclic carbonates from terminal epoxides and carbon dioxide. Methods: Using one such trifunctional organocatalysts, epichlorohydrin could selectively converted target carbonate under 2 bar CO2 at 120 °C. Results: Over 80% conversion E3 was then observed when organocatalyst S3 used in amount 0.5 mol% (TON = 156) even use 0.05 guaranteed almost 50% C3 893). Conclusions: The presence tertiary amine molecules these homogeneous organocatalysts proved crucial catalytic activity developed organocatalysts. However, their also supported by acidic phenolic ions as Lewis bases. Some closely related compounds were found clearly less active or inactive catalytically applied reaction conditions.

Language: Английский

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