Chemical Communications最新文献

Alkali metal ketenyls, [M(RCCO)], were found to exhibit diverging reactivities towards ammonia depending on the substitution pattern. Ketenyl anions with strong electron-withdrawing groups (R = CN or tosyl) react with NH₃ to form β-ketoamides, while the phosphinoyl substituted systems (R = Ph₂P(E), E = S, Se) activate all three N-H bonds, resulting in a trianionic triamide. This triamide exhibits a dimeric structure with the six potassium cations forming a unique planar triangular {K₆}⁶⁺ cluster.

A decarboxylative oxidation and ring-opening protocol of carboxylic acids via tungsten-catalyzed photoinduced ligand-to-metal charge transfer (LMCT) is described. This reaction enables the preparation of carbonyl and 1, n-dicarbonyl compounds. To the best of our knowledge, this is the first example of tungsten catalyzed decarboxylative functionalization reactions.

Correction for 'A guanosine-containing nucleopeptide self-assembles at the Hoogsteen face to act as a peroxidase mimetic' by Sarah O'Neill et al., Chem. Commun., 2025, 61, 18633-18636, https://doi.org/10.1039/D5CC05835J.

Correction for 'Synthesis and characterization of the first neutral hexacoordinated silole complexes' by Balázs Szathmári et al., Chem. Commun., 2025, 61, 16042-16045, https://doi.org/10.1039/D5CC04234H.

A controlled structural reconstruction strategy was constructed for NiMn₂O₄ spinel via atmosphere manipulation, which was applied for investigating the critical role of spinel structure formation in the high-activity dry reforming of methane (DRM) reaction. NMO-Air demonstrated the highest CH₄ conversion and optimal H₂/CO ratio (1.2).

The global transition to green hydrogen via water electrolysis is constrained by the sluggish oxygen evolution reaction (OER), particularly at high current densities required for industrial applications. Among Earth-abundant materials, nickel-iron (NiFe)-based compounds have emerged as leading candidates, offering intrinsic activity, synergistic interactions, and cost advantages that reduce the OER energy barrier, positioning them as viable alternatives to noble-metal catalysts such as IrO₂ and RuO₂. Yet, achieving long-term activity and structural stability at high current densities (HCDs) remains a critical challenge. This review highlights strategies to advance NiFe-based OER catalysts for sustained high-current operation, focusing on recent innovations including heteroatom doping, vacancy engineering, heterostructure formation, active-site modulation, and self-healing mechanisms. Developments across oxides, (oxy)hydroxides, non-metallic heteroatomic composites, layered double hydroxides, metal-organic framework-derived materials, and noble-metal-integrated hybrids are examined to provide a rational design framework for robust and efficient OER catalysts. Key pathways to tune morphology, composition, and electronic structure are identified, offering insights to bridge the gap between laboratory-scale studies and scalable electrolyzer deployment.

We report herein the synthesis of new germylenes supported by an anilido-pyrazole ligand and their catalytic efficacy in the selective N-formylation of amines using CO₂ (atmospheric pressure) and hydrosilanes. The reaction mechanism was proposed based on various control experiments and DFT calculations, which suggested the important roles of the hemilabile pyrazole and amido ligands in the present protocol. Our work expands the scope of germylene-based catalysis by offering new insights into CO₂ valorisation.