Enhancement of Two Types of CO₂ Conversion by Regulating Functional Thiophene Groups within Zn-MOF

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

Published: Feb. 26, 2025

Sustainable conversion of epoxides and propargylic amines using CO2 could produce valuable chemical products. Efficient generally requires harsh conditions such as noble-metal catalysts, cocatalysts, toxic solvents, thereby underscoring the crucial need for environmentally friendly non-noble-metal metal–organic framework (MOF) catalysts. In this study, we designed a novel zinc-based with 5-fold interpenetrating diamond framework, specifically {[Zn(DMTDC)(bpy)]·H2O}n (Zn-MOF-2), where H2DMTDC represents 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid bpy denotes 4,4′-bipyridine. Zn-MOF-2 serves bifunctional heterogeneous catalyst to promote cyclization reaction propargylamine under mild conditions. The isolated yields resulting cyclic carbonates oxazolidinones were 92% 93%, respectively. Notably, maintained good catalytic activity after five cycles in both types conversion. Control experiments confirmed effective Zn2+ Lewis sites Zn-MOF-2. isostructural CPO-5 assembled from 4,4′-biphenyldicarboxylic has also been demonstrated catalyze cycloaddition but an inferior performance catalyzing carboxyl amines. This result shows that thiophene ring ligand plays pronounced role performance. research will enhance development MOF catalysts CO2.

Language: Английский

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Tetrathienylethene-based porous framework composites for boosting photocatalytic antibacterial activity

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(15)

Published: April 7, 2025

In order to reduce the risk of high-threat pathogens, a photocatalytic antibacterial method with reputation for high efficiency and sustainability has attracted widespread attention. Recently, metal-organic frameworks (MOFs) have emerged as desirable platforms applications by virtue their structural diversity functional adjustability. Herein, we report that synthesized stable photosensitive zirconium-based MOF (Zr-MOF) photoactive tetrathienylethene-based organic linker, Zr-TSS-1. Compared all-carbocyclic Zr-MOF counterparts, Zr-TSS-1 shows substantial improvement in visible-light harvesting free-carrier generation, enabling it be promising candidate applications. validate advantages this framework an protective material, composite was fabricated incorporating robust onto sustainably accessible bacterial cellulose (BC) using situ growth method. This exhibits near-complete lethality toward typical Gram-negative Escherichia coli Gram-positive Staphylococcus aureus within 1 h under mild irradiation preserves outstanding capability after five cycles reutilization. addition, biocompatibility is confirmed low cytotoxicity human skin fibroblast, suggesting its potential biomedical healthcare research demonstrates efficacious integration purposely designed porous sustainable substrate synergistic functionality, paving practical way development next-generation high-efficiency antimicrobial technology.

Language: Английский

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Thiophene-Functionalized Zn-Based Metal–Organic Frameworks with Nanosheets/Nanopores as Heterogeneous Catalysts for CO₂ Conversion

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

Published: April 20, 2025

Language: Английский

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Synthesis, structure and luminescent sensing behaviour of a thieno[3,4-b]thiophene-based coordination polymer

Inorganica Chimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 122733 - 122733

Published: April 1, 2025

Language: Английский

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A comprehensive review on the rational design of MOF-based heterogeneous catalysts for the classic Biginelli reaction

Polyhedron, Journal Year: 2025, Volume and Issue: unknown, P. 117570 - 117570

Published: April 1, 2025

Language: Английский

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