A Pd-catalyzed, ligand-free method for β,δ-selective consecutive arylation of internal alkenes with aryl iodides has been developed. This transformation employs a native group-directed double Heck arylation, utilizing selective β-H elimination to achieve precise regiochemical control. The protocol demonstrates high efficiency and broad functional group tolerance.

Zn and F elements are introduced into the lattice of Li-rich layered oxides, and the experimental results strongly prove that the dual-doping effectively alleviates surface-interface reactions and significantly improves surface structural stability. As a result, the dual-doped sample delivers an excellent capacity retention ratio as large as 86.9% after 200 cycles.

After grafting polyalkylamines into a Cr-MOF, the materials were tested for their efficacy in catalyzing cycloaddition reactions between CO and 1,2-epoxybutane (EB). While the amines significantly increased the MOF's cyclic carbonate selectivity, Cr promoted the formation of unwanted polymeric side-products that became trapped in the MOF pores, reducing catalyst cyclability.

A nanopore engineering approach enhances acetylene (CH) over carbon dioxide (CO) selectivity in ionic ultramicroporous polymers (IUPs), an understudied class of sorbents. Extending the cationic arm of a prototypical IUP nearly doubles its CH/CO selectivity from 4.9 to 8.5 (at 298 K, 1 bar), underpinned by further observations from dynamic separation experiments and bespoke computational insights.

This work reports the intramolecular phosphine-oxide stabilized tetra-coordinated germanium(IV) di-cation on an acenaphthene platform, 1iPrPO. Computational study shows that the positive charges and the acceptor orbitals are localized on the Ge site. 1iPrPO is Lewis super acidic, capable of catalysing hydrodefluorination reaction. 1iPrPO also catalyses hydrosilylation of electron-deficient aldehydes.

This work comprehensively explores the effects of various positions of Cas12a split activators. Based on this, a multi-functional synergistic platform was constructed. The construction of a structural dynamic network, the sensitive detection of APE1, and a time-controlled photo-activation have been achieved, demonstrating the potential for expanding Cas12a applications.

We develop a microwave-assisted solid-phase synthesis (MASS) for NaV(PO)F (NVPF) using NHF, NHVO, and NaCO precursors, achieving ultrafast synthesis (40 minutes) and a fractal microstructure with uniform carbon coating. The NVPF cathode delivers near-theoretical capacity (127.41 mA h g at 0.1C), retains 60.83 mA h g at 20C, and shows 95.19% capacity retention after 500 cycles. Full cells (NVPF‖HC) demonstrate industrial viability with 475.6 W h kg energy density. This work provides a scalable, energy-efficient strategy for high-performance energy storage materials.

Allenes exhibit comparatively lower stability compared to alkenes and alkynes, which confers heightened reactivity to these compounds. Recently, the radical functionalization of allenes has progressed considerably, leading to a renaissance in the synthesis of functional natural products, drugs and their analogues, but summary work addressing this aspect has not been reported. This review systematically summarizes recent advancements in the field of radical functionalization of allenes reported within the past five years. It encompasses the difunctionalization and trifunctionalization of the three carbon atoms in allenes, as well as the functionalization of C-Y bonds (Y = H, Br). The representative studies are categorized based on the type of radicals generated, including -, -, -, -, and -centered radicals. For individual more complex reactions, the mechanisms are explored and briefly discussed.

A novel cathode Li-supplement additive, LiSiO@rGO, has been developed; it features high capacity (820 mA h g), high air stability, and feasible Li-supplement potential (4.3 V). Its integration in NCM622‖graphite improves the energy density by 9% and enhances the capacity retention from 27.5% to 70%. Analogous improvements are also manifested in LFP‖graphite.

sp-Carbon-conjugated porous polymers (spC-CPPs) are promising photothermal materials but suffer from poor processability. We present a double-network cross-linked polymer foam (DN-CPF) that integrates spC-CPPs with flexible polymer chains, achieving 92.6% photothermal efficiency and a water evaporation rate of 1.53 kg m h under one sun, demonstrating excellent stability, salt resistance, and potential for efficient solar-driven desalination.

Methylammonium chloride (MACl) enhances the performance of Dion-Jacobson quasi-2D tin perovskite solar cells by suppressing low-dimensional phases and defects. The addition of an optimal amount of MACl (20 mol%) improves the crystallinity, film morphology, and charge transport of the quasi-2D tin perovskite layer and enhances the power conversion efficiency (PCE) from 2.9% to 6.2%.

A palladium-catalyzed tandem carbonylation reaction has been developed for the construction of ynones. This reaction is characterized by readily available starting materials, broad functional group compatibility, and the use of CO as the carbonyl source. Unlike conventional carbonylation methods for synthesizing ynones, this strategy enables the efficient preparation of dialkyl chain-substituted ynones under atmospheric CO pressure. Further gram-scale experiments and derivative synthesis demonstrate the significant synthetic utility of this approach.

A fiber structure composed of hollow carbon spheres and transition metal catalysts has been developed and presented, using a strategy that combines electrostatic spinning with heat treatment. It demonstrates improved stability and reversibility when utilized as an electrochemical catalyst in zinc-air batteries.

In this work, we have developed a Sanger's reagent-based photocage, LNDA-NBD-Sanger, which releases the caged COX-2 inhibitor, lenalidomide (LNDA), under 400 nm UV irradiation while producing a fluorescent signal from the activated nitrobenzoxadiazole (NBD) derivative, realizing the monitoring of LNDA release in cancer cells and light-controlled anti-cancer therapy.

Phase transitions enabling subtle structural and compositional changes offer valuable insights into the luminescence regulation of metal halides. Herein, six copper-based hybrid halides were synthesized, achieving halogen and solvent induced structural transitions, along with luminescence transformations among identical structures through defect filling. These luminescence transitions endow them with suitable applications in anti-counterfeiting.

Drug-induced liver injury (DILI) is a leading cause of acute liver failure, which is closely associated with oxidative stress. Glutathione (GSH), a vital sulfhydryl peptide, maintains cellular redox balance and signaling. In this study, we have successfully developed a highly selective near-infrared fluorescent probe, AH-F, which exhibits a 357-fold enhancement in fluorescence upon detection of GSH. With the aid of AH-F, the pertinent physiological parameters in a murine model were characterized by cellular and drug-induced liver injury, concurrently allowing for the assessment of the therapeutic efficacy of relevant pharmaceutical interventions.

Herein, we report two charge-assisted hydrogen-bonded organic frameworks (iHOF-24 and iHOF-25) with 3D/2D hydrogen-bonding networks, which exhibit high ionic conductivity for alkali metal ions. Among them, the conductivity of Li is higher than that of Na and K, and the ionic conductivities of Li@iHOF-24 and Li@iHOF-25 at 30 °C were 9.44 × 10 and 9.85 × 10 S cm. This change is attributed to the distance between neighboring carbonyl groups in iHOF-24 and iHOF-25, as well as the radius of the loaded alkali metal ions.

Chiral phosphines are important ligands in asymmetric catalysis, yet their potential as directing groups for asymmetric C-H activation remains unexplored due to the oxidative nature of these reactions. We present a Pd-catalysed, P(III)-directed diastereoselective acetoxylation of phosphoramidites, with DFT calculations elucidating their unique reactivity and supporting the proposed reaction mechanism.

The lattice thermal conductivity of p-type skutterudite MmFeCoSb is reduced to ∼0.69 W m K at 623 K compositing 0.75 wt% polyaniline nanoparticles. The thermoelectric figure of merit reaches ∼1.16 at 723 K, and the efficiency of a virtual device gets to 10.7% at Δ = 480 K through finite element simulations.

Mn-based layered oxide cathodes with anionic redox activity are desirable for sodium-ion batteries due to their high specific energy and low cost. Rational modulation of electronic configurations enables a complete solid-solution reaction in the Na-O-Li configuration, enhancing and stabilizing the capacity derived from anionic redox.

Commercial aluminium triflate and aluminium bis(trifluoromethanesulfonyl)imide salts are hydrates, which renders water containing electrolytes that passivate electrodes through Al(OH) formation. By acid-base reactions we produce anhydrous salts and the resulting anhydrous electrolytes demonstrate enhanced electrochemical activity, paving the way for aluminium battery development.