Nanoporous Thulium(III)–Organic Framework for High Catalytic Performance on the CO2-Epoxide Cycloaddition DOI
Fei Yang, Yan-Peng Gao,

Meiyu Ren

et al.

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Considering that the greenhouse effect is most concerning environmental issue globally, selective capture and resource utilization of CO2 have attracted widespread attention. Herein, we report a highly robust thulium(III)–organic framework {[Tm2(μ2-OH)(CPPDDA)(H2O)2]·3DMF·2H2O}n (NUC-108), which obtained from exquisite combination undocumented multifunctional clusters [Tm4(μ2-OH)2(COO)10(H2O)4] organic ligands 4,4′-(4-(4-carboxyphenyl)pyridine-2,6-diyl)diisophthalic acid (H5CPPDDA). NUC-108 possesses following unique merits: (i) functional tetranuclear rare-earth serve as nodes, in Tm3+ ions can be activated Lewis sites μ2-OH anions are base sites; (ii) high-porosity zeolite architecture contains three kinds channels: 12.29 × 9.74 Å2 8.92 4.97 along b axis 12.76 8.95 c axis; (iii) uncoordinated pyridine moieties further endow host with functionality; (iv) resistance to weak acidic alkaline aqueous solutions well various solvents. Notably, NUC-108a effectively separate binary CO2/CH4 mixture high adsorption selectivity, should due enough basic groups moieties. Furthermore, under mild conditions without any solvent, also used an effective recoverable catalyst facilitate cycloaddition epoxides aid tetrabutylammonium bromide. Hence, these findings beneficial for guiding development stable active catalysts carbon utilization.

Language: Английский

Synthesis and Characterization of a Hercynite-Supported Copper(II) Complex Based on 1,10-Phenanthroline-5,6-dione and Acetylacetone Building Blocks and Its Catalytic Application in Annulation Reactions DOI
Masoud Mohammadi, Ghobad Mansouri

Langmuir, Journal Year: 2024, Volume and Issue: 40(43), P. 22773 - 22786

Published: Oct. 18, 2024

In the present work, a novel Cu(II) complex containing 10-phenanthroline-5,6-dione (phen-dione) and acetylacetone (acac) was prepared via solid-phase synthesis on silica-modified hercynite magnetic nanoparticles (MNPs). The resulting structure underwent thorough structural analysis using diverse instrumental techniques. catalytic potential of synthesized successfully demonstrated in 2-amino-3-cyano-4

Language: Английский

Citations

10
Custom‐Designed Robust MOF‐Catalyst for Scalable 1,4‐DHP Drugs With H–Bonding‐Mediated Tandem Hantzsch Condensation and Shape‐Reliant Friedel‐Crafts Alkylation DOI
Rudra Chand, Athulya S. Palakkal,

Mahesh Neem

et al.

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

Published: April 7, 2025

Abstract Flanked –NH 2 functionality, polar carbonyl moiety and intrinsically unsaturated [Zn (CO ) (ATz) 4 ] center‐decked micropores in an ultra‐robust metal‐organic framework (MOF) are reported, assembled from bent dicarboxylate triazole ligand. The MOF serves as one‐of‐a‐kind tandem Hantzsch condensation catalyst to yield a multitude of 1,4‐dihydropyridines (1,4‐DHPs) with low loading, short reaction duration at moderate temperature. Importantly, the is used synthesis six 1,4‐DHP‐based therapeutic molecules >95% conversion, which characterized purest form via X‐ray crystallography besides other spectroscopic analyses. Apart gram‐scale production ethidine molecule 40 °C just 30 min, oxodipine drug first‐time synthesized by any framework‐based catalyst. This mixed‐ligand further demonstrates highly recyclable Friedel–Crafts (FC) alkylation indole β‐nitrostyrene covers twenty electronically diverse substrates under relatively green conditions. Strikingly, larger‐sized can't diffuse inside exemplifies rarest shape‐reliant C‒C coupling reaction. Contrary conventional Lewis‐acid activation, maximum contribution hydrogen‐bonding site promotes both multi‐component FC reactions, comprehensively supported control experiments, analyte‐induced emission articulation, inferior activity task‐specific site‐truncated isoskeletal MOF, density functional theory results. work provides major advancement on unconventional heterogeneous catalysis produce valuable products.

Language: Английский

Citations

0
A Multifunctional Tb(III)-Based Metal–Organic Framework for Chemical Conversion of CO2, Fluorescence Sensing of Trace Water and Metamitron DOI

Huan Dai,

Zichen Xu,

Ke Yang

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

The utilization of metal-organic frameworks (MOFs) as fluorescent sensors for the detection environmental and chemical reagent pollutants well heterogeneous catalysis CO

Language: Английский

Citations

1
Nanoporous Thulium(III)–Organic Framework for High Catalytic Performance on the CO2-Epoxide Cycloaddition DOI
Fei Yang, Yan-Peng Gao,

Meiyu Ren

et al.

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Considering that the greenhouse effect is most concerning environmental issue globally, selective capture and resource utilization of CO2 have attracted widespread attention. Herein, we report a highly robust thulium(III)–organic framework {[Tm2(μ2-OH)(CPPDDA)(H2O)2]·3DMF·2H2O}n (NUC-108), which obtained from exquisite combination undocumented multifunctional clusters [Tm4(μ2-OH)2(COO)10(H2O)4] organic ligands 4,4′-(4-(4-carboxyphenyl)pyridine-2,6-diyl)diisophthalic acid (H5CPPDDA). NUC-108 possesses following unique merits: (i) functional tetranuclear rare-earth serve as nodes, in Tm3+ ions can be activated Lewis sites μ2-OH anions are base sites; (ii) high-porosity zeolite architecture contains three kinds channels: 12.29 × 9.74 Å2 8.92 4.97 along b axis 12.76 8.95 c axis; (iii) uncoordinated pyridine moieties further endow host with functionality; (iv) resistance to weak acidic alkaline aqueous solutions well various solvents. Notably, NUC-108a effectively separate binary CO2/CH4 mixture high adsorption selectivity, should due enough basic groups moieties. Furthermore, under mild conditions without any solvent, also used an effective recoverable catalyst facilitate cycloaddition epoxides aid tetrabutylammonium bromide. Hence, these findings beneficial for guiding development stable active catalysts carbon utilization.

Language: Английский

Citations

0