Co3+-doped akhtenskite-type MnO2 cathode with electronic modulation toward high-performance aqueous zinc ion batteries was constructed and its dual regulation mechanism was unraveled by experimental characterizations and theoretical calculations.

A computational analysis of the CO2RR yielding challenging alcohol products was performed over fcc and unconventional hcp-Cu nanoparticles. The methanol formation was found to be exceptionally challenging due to excessive formate stability, CO* accumulation and more favorable C-C coupling, whereas hcp-Cu(110)h could promote ethanol formation via an uncommon OC-CHO intermediate.

A diastereoselective higher-order [10+2] cycloaddition reaction of isoindigos and 2-alkylidene-1-indanones has been developed using TBAI as a phase-transfer catalyst, affording structurally diverse pentacyclic bispirooxindole scaffolds with five consecutive chiral centers in high yields and with excellent diastereoselectivities (yields of up to 97% and >20 : 1 dr) under mild conditions.

A new borate fluoride, KSrB2O4F, was synthesized. Its crystal structure and optical properties were systematically investigated. KSrB2O4F exhibits a minimal birefringence of Δn = 0.0004 at 1064 nm compared to other reported beryllium-free compounds and a deep-ultraviolet cutoff edge below 190 nm, making it a promising candidate for zero-order wave plate applications.

In situ polymerization of a cyano-ionic liquid on g-C3N4 forms a robust crosslinked triazine network. Strong π-π interactions with heptazine units overcome conventional grafting limits, significantly enhancing charge separation.

Herein, we report a diastereoselective cascade electrochemical intramolecular C(sp[3])-C(sp[3]) cross-dehydrogenative cyclization for the synthesis of dihydrobenzo[b,e]pyrroloazepines. The reaction proceeds via an iminium intermediate and 7-endo-trig cyclization at room temperature without sacrificial oxidants or expensive catalysts, while retaining the benzylidene functionality. The resulting compounds exhibit excellent photophysical properties and enable the nanomolar detection of picric acid in an aqueous-organic medium.

TPA-PiBTI, a helicene-based donor-acceptor molecule, features a through-space D-A arrangement, as confirmed by crystallographic, electrochemical, photophysical, and computational studies. Its chemical oxidation yields an air-stable radical cation exhibiting visible-to-near-infrared absorption, establishing a design strategy for persistent radical cations via a through-space D-A helicene.

High-entropy oxides offer tunable functional properties, yet their acidic dissolution is largely unexplored. We show that (MgCoNiCuZn)0.2O dissolves congruently in dilute nitric acid, releasing all five cations together. A physical mixture and a three-cation solid solution both dissolve incongruently, showing that a single phase alone does not ensure congruent release.

We report an electrophotochemical, cerium-catalyzed strategy for the decarboxylative coupling of α-keto acids with aldehydes. This protocol provides a sustainable and mechanistically distinct route to cross-benzoins. Mechanistic studies reveal that paired electrolysis, in conjunction with ligand-to-metal charge transfer (LMCT) catalysis, enables the simultaneous generation of ketyl and acyl radicals.

Selenoxanthylium photocatalysts are designed based on their ground-state properties to enable low-energy photon photocatalysis, although reductive quenching of their excited state generates persistent selenoxanthylyl radicals. Herein, we report the characterization of selenoxanthylyl radicals by EPR, cyclic voltammetry, UV-Vis spectroscopy, and TD-DFT calculations, together with their application in consecutive photoinduced electron-transfer (conPET) catalysis.

A seed-mediated method yields morphology-tunable gold nanocrystals (Au NCs) using 4-ATP and CTAC. Adjusting 4-ATP concentration produces Au NCs with varied shapes and LSPR peaks of 579-783 nm, whereas CTAC merely stabilizes particles without altering morphology. Uniform Convex polyhedral Au NCs with sharp tips deliver strong SERS enhancement. Embedded 4-ATP acts as an internal probe for reliable quantification, offering a facile route to self-calibrated SERS substrates for trace analysis.

Herein we report a new family of layered oxonitridosilicate Li[+] conductors, Li15.6La4.8Si11N20O6X2 (X = Cl, F). Enabled by a robust layered framework and a Li-vacancy-rich sublattice, Li15.6La4.8Si11N20O6Cl2 delivers fast Li[+] transport with an ionic conductivity of 0.46 mS cm[-1] at 498 K.

Judicious choice of alkylammonium cations with a range of alkyl-chain lengths mediates intermolecular aurophilic interactions in [RMe3N]2[Au2(i-mnt)2] (i-mnt = (CN)2C(?)CS2[2-]; R = CnH2n+1 where n = 4, 8, 10, 16) and controls the supramolecular packing of the anionic aurophilic chains. The emissive 1-D aurophilic gold(I) chains self-assemble into columnar or lamellar structures depending on the alkyl chain. The cetyltrimethylammonium derivative is stimuli-responsive, changing its emission from green to orange/yellow/red on exposure to different solvent vapours.

Hydroxymethyl-functionalized iodotriazolium halides were developed as highly active catalysts for the cycloaddition of carbon dioxide to epoxides. The optimized catalyst 3j promoted the cycloaddition of CO2 to styrene oxide at a catalyst loading of 0.1 mol % under 1 atm of CO2, achieving a TON of 640. Control experiments support the contributions of the halogen-bond donor, hydrogen-bond donor, and nucleophilic counteranion to the catalytic activity. Catalyst 3a also promoted double and triple CO2 cycloadditions with selected multifunctional epoxides at a catalyst loading of 15 mol % under 1 atm of CO2.

Hydroquinone clathrates are promising materials for solid-state hydrogen storage, yet distinct spectroscopic characterization of H2 enclathration remains elusive. Here, we show that low-frequency (terahertz) vibrational spectroscopy, coupled with molecular simulations, reveals clear spectroscopic fingerprints of H2 clathrate formation in the α-hydroquinone polymorph, demonstrating an unexpected route to hydrogen incorporation.