Themed collection Dalton Transactions HOT Articles

The versatility of the NNNN macrocyclic ligand Me₄TACD (N,N′,N′′,N′′′-tetramethyl-1,4,7,10-tetraazacyclododecane) for the stabilization of reactive hydrides, hydrocarbyls and silyls of s- and p-block main group metals is summarized.

Atomic layer deposition (ALD) and molecular layer deposition (MLD) are techniques known for their unique ability to produce pinhole-free and conformal thin films uniformly, even on complex 3D architectures and powders, with sub-nm thickness control.

Various ZIF-67-derived chalcogenides and their composites are used in supercapacitors.

This review covers atomically precise metal nanocluster-based photocatalysts for hydrogen production, focusing on their unique structures, strong light harvesting abilities, and charge-transfer mechanisms.

This perspective offers an overview of recent advances in the isolation of late d-block metal imidyls and nitrenes and related metal nitridyls and metallanitrenes.

This review focuses on 4f and 3d–4f cluster single-molecule magnets assembled by automatic fixation of atmospheric CO₂, which involves several influencing factors.

The last few years have witnessed exciting development in the chemistry of silylated rare earths and heavier f-elements.

This tutorial-review describes a systematic framework for selecting suitable electrolytes to improve the efficiency of resulting non-aqueous redox flow batteries.

A tin-based MOF (Sn(HHTP)) was synthesized for lithium storage by incorporating tin nodes with a lithium-active ligand (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene), which changed from a crystalline to an amorphous state after a few cycles.

The first coordination complexes containing a bulky m-terphenyltrihydroborate ligand are described with [M(H₃BAr^tBu4)₃L₂] where M = U or Nd, Ar^tBu4 = 2,6-(3,5-^tBu₂C₆H₃)₂C₆H₃, and L = tetrahydrofuran or 1,2-dimethoxyethane.

A series of planar macrocyclic tetradentate phosphine–Mo complexes was synthesized without stereoisomers.

A Pd-catalyzed sequential B(3)–I/B(4)–H activation strategy via Pd 1,4-migration enables efficient synthesis of 3-alkyl-4-substituted-o-carboranes with diverse substituents (aryl, alkyl, amino, and thio).

Nido-C₂B₉ carborane anion supported Zn–salen complexes are superior to closo-carborane supported ones in ROCOP of epoxides and anhydrides.

Copper ions bind to the N3 positions of both C and FdU (5-fluorouracil) in the C–FdU and FdU–C base pairs of duplex DNA.

New procedures for the conversion of [HCB₁₁H₁₁]⁻ into [HCB₁₁Cl₁₁]⁻ using SbCl₃/SbCl₅ mixture at reflux or TCCA in a solid-solid reaction, as well as syntheses of [XCB₁₁Cl₁₁]⁻ salts (X = Cl, Br, I, NH₂) are reported.

A chromium(III)-based sensor, EtoChrom, is reported as a colorimetric etomidate sensor which exhibits a recognisable colour change, serving as a low cost, fast, easy result-reading kit for on-site etomidate screening tests.

Eu²⁺₃Eu³⁺Ta₂ON₅ is an anion deficient oxynitride with square pyramidal coordination for Ta that shows ferromagnetic order of Eu²⁺ ions below 20 K, with superexchange interactions enhanced by nitride-reinforced hybridization of Eu–(N/O)–Eu bonds.

Chemical substitution and physical pressure drive Martensitic-like polymorphic transitions among FeOCl-, SmSI-, and SrI₂-type structures in LnSI mixed-anion compounds, governed by the cation-to-anion radius ratio as a unifying geometric factor.

Ir(III)–H complexes featuring a chiral CNN pincer ligand and a monophosphine were synthesized as single diastereomers. These complexes demonstrated high activity in the hydrogenation of imines and quinolines under mild conditions.

This study demonstrates the synthesis of amorphous Ni–Fe–B catalysts via ultrasound-assisted reduction, achieving ultrafast and stable 4-nitrophenol reduction through boron-mediated electronic synergy and optimized bimetallic interactions.

Electron-deficient β-trisubstituted porphyrins MTPP(NO₂)(CF₃)₂ (M = 2H, Co, Ni, Cu, Zn) exhibited strong two-photon absorption and negative nonlinear refraction, indicating their potential application in optoelectronics.

Reactions of manganese germylene hydride complexes with dihydrogen, isonitriles, and dinitrogen are described.

By judicious ligand design, the quantum yield of the phosphorescence emission from pyridine-2,6-dipyrrolide bismuth complexes increases by up to 20-fold.

This work presents Nb(V), Ta(V), and V(IV) complexes as dual-use catalysts for olefin polymerization and self-healing MMA materials.

Hydrazide-containing metal–organic cages selectively recognize and activate NO₂⁻ for effective reduction to ammonium under electrocatalytic conditions.

I describe the final stages of the catalysis of N₂ → HNNH → HNNH₂ → NH₃ + NH → 2NH₃ by nitrogenase, and discuss the total mechanism.

The virtues of self-assembly force the connection of three cationic cyanine dyes around a trivalent erbium emitter. Upconverted green emission is observed upon near-infrared excitation of a single molecule in solution at room temperature.

Two different Keggin-type POMs with different TMs (Co and Fe) serving as catalytic sites were synthesized via a hydrothermal method in this work. Compound 1 showed a CO generation rate of 7081.4 μmol g⁻¹ h⁻¹ with a selectivity of 83.8%.

Four new Mn polypyridyl complexes are studied to probe the influence of distal, outer coordination sphere, H-bonding and steric effects on CO vs. HCO₂⁻vs. H₂ product selectivity during the proton-coupled electrocatalytic reduction of CO₂.

Three new iridium(III) complexes were synthesized and characterized. The anticancer activity of the complexes toward B16 cells was explored in vitro, and the complexes exhibited high anticancer activity upon irradiation.

Two Ni/Co polyoxometalate-MOF/graphene oxide composites were developed, with systematic study on the synergistic effects of electrolyte and nitrate concentrations on their electrocatalytic nitrate reduction performance.

As the Cl content increased in the organic–inorganic hybrid compounds, a structural transformation from 0D to 2D was observed. Halide mixing induced greater structural distortion, which was correlated with enhanced photoluminescence quantum yield.

The synthesis of a variety of NHC- and cAAC-ligated cationic copper(I) complexes in their salts with the weakly coordinating tris(pentafluoroethyl)trifluorophosphate counteranion (FAP⁻ anion, [(C₂F₅)₃PF₃]⁻) is reported.

The occurrence of these anion⋯anion dimers in the crystal structure are dependent on the presence of counterions as the attraction between two Au(III) centers is insufficient to override the coulombic repulsion.

A tetranuclear Pr–W heterometal cluster-imbedded antimotungstate has been synthesized, which exhibits excellent catalytic activity and stability in the synthesis of benzimidazoles.

A V doped hollow Co₃O₄ nanoprism is demonstrated to be a high-performance oxygen evolution reaction electrocatalyst due to its hollow structure and the modulated electronic structure induced by V doping.

Dual tuning of nodes and functional guests in three isostructural polyoxometalate@metal–organic frameworks enables facile modulation of their photocatalytic performance, and POMOF 1 shows the highest activity for benzylamine oxidative coupling.

Multisite Surface-anchors in KNFBS agents interact with perovskite GBs for mitigated ion migration.

A defective CeMn solid solution decorated with palladium single atoms (Pd/CeMn-AR) demonstrating improved methane combustion activity and stability was synthesized via a one-pot auto-redox method.

The importance of Mn oxidation states in determining the catalytic efficiency of Mn-based composites for SF₆ degradation.

Natural nepheline yields highly photochromic hackmanites sensitive even at low UV index values.

SrCo_0.6Ni_0.4O_3−δ (annealed at 950 °C) with a composite hexagonal structure (SrCo_1−yNi_yO_3−δ/Sr₉Ni₇O₂₁, y = 0.1–0.2) achieved the best OER performance.

The strategic design and advancement of electrode materials are crucial for the effectiveness of energy storage and conversion devices.

An annulated 1,4,2-diazaborole reacts with CO and CS bonded species to form rare examples of 1,3,2-oxazaboroles and 1,3,2-thiazaboroles via (3 + 2) cycloaddition.

Biomass-derived ultra-thin carbon nanosheets rich in heteroatoms are developed as interfacial materials for perovskite solar cells. The enhanced utilization of carriers contributes to an optimal efficiency of 21.65% with improved stability.

Highly dispersible TiO₂ nanoparticles were synthesized and used as the electron transportation layer of quantum dot light emitting diodes (QLEDs). QLEDs achieved an external quantum efficiency of 12.03% and a highest luminance of 103 420 cd m⁻².

A combination of tetrahedral [SO₄] with trigonal pyramidal [IO₃] units leads to a series of rare earth compounds Ln(IO₃)(SO₄)·3H₂O (Ln = Y, Gd, Er, Ho, Dy, Eu) with balanced UV SHG responses, optical band gaps and birefringence.

A promising infrared birefringent crystal Ba₄HgP₂Se₁₀ was synthesised via a low-dimensional motif intercalation strategy, that features the balanced optical properties including wide transmission range, large band gap, and substantial birefringence.

The linear and non-linear optical properties of cesium bismuth bromide (CBB) and PEA-CBB are explored. The increase in two-photon absorption and the subsequent decrease in the optical limiting threshold point to effective optoelectronic applications.

This study reports the structures of various mid-valent half-sandwich chromium complexes, including hydride-bridged Cr–Al species with {CrCp*H₄}³⁻ and {Cr₂Cp*₂H₄}³⁻ chromate units that stabilize Al³⁺ ions.

Herein, we report how the bifunctional imidaozlium-phenol LH₂Br ([HO-4,6-^tBu₂-C₆H₂-2-CH₂{CH(NCH = CHNAr)}]Br; Ar = Dipp = 2,6-ⁱPr₂-C₆H₃) leads to three distinct outcomes with bismuth by just altering the relative ratios of the reacting components.

DFT screening leads to most promising candidate for solar cell application.

Monocopper(II) complexes are good models for copper oxidase enzymes and efficient promiscuous catalysts. They exhibit greater k_cat values for their amine oxidase activity, but ascorbate and catechol oxidase activities are comparable to enzymes.

Despite its non-planar structure, a neutral gold bis(dithiolene) radical complex organized into uniform, non-dimerized stacks, exhibiting metallic conductivity under pressure.

Modified by fluorination strategies, [AlF₆] octahedra become potential building blocks for deep-ultraviolet zero-order waveplate materials.

A porous and robust zirconium metal–organic framework-confined mono-bipyridyl iron(III) chloride serves as an active heterogeneous catalyst for the regioselective oxidative bromination of various substituted arenes under mild reaction conditions.

The rapid synthesis of a fault-free GME zeolite at 160 °C for 2.5 h is reported, displaying excellently selective CO₂ adsorption from CO₂/N₂.