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Construction of Axially Chiral Dialdehydes via Rhodium-Catalyzed Enantioselective C-H Amidation.
Angew Chem Int Ed Engl
January 2025
Anhui Normal University, School of Chemistry and Materials Science, 189 Jiuhua South Road, 241002, Wuhu, CHINA.
Achieving axially chiral biaryl dialdehydes through asymmetric catalysis remains significantly challenging due to the lack of efficient strategies. In this report, we developed a rhodium-catalyzed enantioselective C-H amidation through chiral transient directing group strategy. With this new approach, a series of axially chiral amido dialdehydes were achieved in up to 86% yields with 99.
View Article and Find Full Text PDFCu-Sb Atomic Pair Site in Metal Halide Perovskite for CO Reduction to Methanol.
Inorg Chem
January 2025
School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China.
Electrochemical conversion of CO into methanol has received extensive attention in recent years since methanol is an efficient energy carrier and industrial feedstock. However, the selectivity to methanol remains unsatisfied. In this work, Sb-doped CsCuI is first and rationally developed for CO electrochemical reduction, achieving remarkable high selectivity of methanol.
View Article and Find Full Text PDFSynergistic Antibacterial Action of Norfloxacin-Encapsulated G4 Hydrogels: The Role of Boronic Acid and Cyclodextrin.
Gels
January 2025
"Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy, Centre of Advanced Research in Bionanoconjugates and Biopolymers, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania.
In this present study, we developed and characterized a series of supramolecular G4 hydrogels by integrating -cyclodextrin (-CD) and boronic acid linkers into a supramolecular matrix to enhance antibacterial activity against (). We systematically investigated how varying the number of free boronic acid moieties (ranging from two to six), along with guanosine and β-CD content, influences both the structural integrity and antimicrobial efficacy of these materials. Comprehensive characterization using FTIR, circular dichroism, X-ray diffraction, SEM, AFM, and rheological measurements confirmed successful synthesis and revealed that higher boronic acid content correlated with a stronger, more organized network.
View Article and Find Full Text PDFTiO/CoO heterostructure decorated MIL-100(Fe) by atomic layer deposition for enhanced photocatalytic oxygen production.
Dalton Trans
January 2025
College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P. R. China.
Efficient separation of photogenerated charge carriers is essential for maximizing the photocatalytic efficiency of semiconductor materials in oxygen evolution reactions (OER). This study presents a novel trimetallic photocatalyst, MIL-100(Fe)/TiO/CoO, synthesized through a facile microwave-assisted hydrothermal method followed by atomic layer deposition (ALD). The porous MIL-100(Fe) serves as a support for the sequential deposition of TiO and CoO layers ALD, which enhances electron-hole pair separation and minimizes their recombination.
View Article and Find Full Text PDFPreparation of Polyaniline Modified Cellulose Filter Paper and Its Application in Detecting 23 Per- and Polyfluoroalkyl Substances.
J Sep Sci
January 2025
Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China.
Per- and polyfluoroalkyl substances (PFAS) are a widely used class of synthetic chemicals that pose a significant global environmental and health threat due to their persistent and bioaccumulation toxicity caused by strong C-F bonds in their structures. PFAS usually exist in trace concentrations in environmental water bodies, which poses great challenges for environmental analysis. In this study, environmentally friendly cellulose was modified with polyaniline through in situ oxidative polymerization, and used as the filter paper for solid-phase extracting 23 PFAS in water.
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