A new synthetic method allows isolating fluoride-bridged complexes Bu4N{[M(3NO2,5Br-H3L1,1,4)]2(μ-F)} (M = Dy, 1; M = Ho, 2; M = Gd, 3) and Bu4N{[Dy(3Br,5Cl-H3L1,2,4)]2(μ-F)}·2H2O, 4·2H2O. The crystal structures of 1·5CH3C6H5,·2·2H2O·0.75THF, 3, and 4·2H2O·2THF show that all of them are dinuclear compounds with linear single fluoride bridges and octacoordinated metal centers. Magnetic susceptibility

Atomically dispersed catalysts (ADCs) have recently drawn considerable interest for use in water electrolysis to produce hydrogen, because they allow for maximal utilization of metal species, particularly the expensive and scarce platinum group metals. Herein, we report the electrocatalytic performance of atomically dispersed ruthenium catalysts (Ru ADCs) with ultralow Ru loading (0.2 wt%). The as-obtained

Due to the surface adsorption and interlayer insertion behavior of chloride anions, Fe-Ni(oxy)hydroxide catalytic surface is easily destroyed, making it difficult to be used for long-term seawater electrolysis. Here, we developed a time- and labor-saving rapid surface reconstruction assisted by directional anodic corrosion strategy to in situ construct chrysanthemum shaped active catalytic layer of

How to produce luminescent materials with anisotropic emission properties in a universal manner remains an open issue. We here report a range of hydrogels with both anisotropic mechanical strength and anisotropic luminescent behaviors, which are prepared by copolymerization of ultra-high magnetic response two-dimensional (2D) nanofillers, polymer monomer and lanthanide complex in an aqueous dispersion

Polyoxometalate chemistry has made rapid advances in innovative structural chemistry. The lower valence state and lone electron pair effect of subgroup-valence heteroatom Te(IV) can be introduced into the tungsten-oxygen system to construct complicated tellurotungstate (TT) aggregates. Thus, we for the first time synthesized a phosphite-participating S-shaped penta-CeIII-incorporated tetrameric TT

Electrochemical ammonia synthesis is an environmentally friendly method for ammonia production, but still impeded by the bottleneck of N2 activation and challenging hydrogen evolution reaction (HER). Rational design and develop efficient electrocatalysts with tuning surface electronic state is regarded as a promising strategy to overcome these obstacles. Herein, we report phosphorus-doped potassium

Radioluminescence and visible photoluminescent tunability features from a single Tm3+-doped yttrium tantalate phosphor prepared by a soft sol–gel method designed to afford cubic Y3TaO7 and monoclinic M’-YTaO4 crystalline phases are reported. The annealing temperature influenced the crystallization kinetics and stabilized a preferential phase. To investigate how the crystalline phase affected the Tm3+

The design of artificial supramolecular systems that mimic the structure and functionality of natural enzymes to achieve efficient chemical conversions is a promising subject. In this work, we assembled a novel metal-organic capsule from the electron-rich dyes polyaniline compounds as ligands by subcomponent self-assembly strategy . By encapsulating electron-deficient dyes anthraquinone or 9,10-dicyanoanthracene

Phosphors with rare earth (RE) ions are widely applied to optical temperature measurement. Moreover, the near-infrared (NIR) emission of phosphor has potential applications at biological field. Herein, the Gd2O3:xNd3+/Yb3+(0.02 ≤ x ≤0.08) samples are successfully synthesized by sol-gel method, and their phase and morphology are characterized. The XRD data are refined by Rietveld. Under 980 nm continuous

Intracellular calcium levels are closely related to cell survival. The disruption of the calcium buffering capacity or an overload of the calcium levels enhances the susceptibility of cells towards external stimuli such as reactive oxygen species. Capitalizing on this, herein, a pH-responsive calcium carbonate nanoplatform loaded with iridium complexes (IrCOOH-CaCO3@PEG) for combined calcium overload

Homogeneous surface deposition of molecules over a large area of substrate is difficult to achieve but extremely important for proposed applications of magnetic molecules in data storage, information processing or molecular spintronics. In this paper we report a simple method for large area surface functionalization with the aim of grafting complex molecules in an organized manner. Proof of concept

The protonation of several Ni-centered pyridine-2-thiolate photocatalysts for hydrogen evolution is investigated using X-ray absorption spectroscopy (XAS). While protonation of the pyridinethiolate ligand was previously thought to result in partial dechelation from the metal at the pyridyl N site, we instead observe complete dissociation of the protonated ligand and replacement by solvent molecules

Copper(II) coordination by bis(cyclohexanone)oxalyldihydrazone (also known as cuprizone), resulting in the formation of an intensely coloured blue complex, was first reported over 70 years ago. The cuprizone reaction has been employed in colourimetric tests for the presence of trace levels of copper. Cuprizone administration in C57BL/6 mice also leads to demyelination over time - a consequence that

The reaction of copper with bis(cyclohexanone)oxaldihydrazone (cuprizone) is a challenging coordination chemistry problem that has confounded attempts at elucidation for the past 70 years. The product of the reaction, a blue copper complex, wherein the cuprizone ligand is hydrolyzed, has been the primary focus during its history. We have recently characterized an additional green multi-copper product

Phosphanylidenephosphoranes of the type R−P(PR’3), also known as phospha-Wittig reagents, can be utilized in a variety of bond activation reactions exploiting their phosphinidenoid reactivity. In here, we thoroughly show that a facile PMe3 for H2O exchange gives access to various primary phosphine oxides of the general formula RP(H)2O (R = Mes*, MesTer, DipTer) and the molecular structure of DipTerP(O)H2

NaCrO2 particles for high-rate sodium ion batteries were prepared on a multigram scale in segmented flow from chromium nitrate and sodium nitrate using a segregated flow water-in-oil emulsion drying process. Microfluidic processing is an environmentally friendly and rapid synthetic method, which can produce large-scale industrial implementation for the production of materials with superior properties

Macrocycles with and without B-N bonds were prepared from reaction of C6F5BH2·SMe2 or MesBH2 with the 2,6-pyridinedimethanol derivatives. Both classes of macrocycle reacted with B(C6F5)3 but were unreactive to small molecules. These observations provide insights for the subsequent design of macrocyclic FLPs for multi-electron reactions.

Two new quaternary selenides AAg3Ga8Se14, (A = Rb, 1; Cs, 2) were synthesised via sold-state reaction in sealed silica tubes. Compounds 1 and 2 crystallised in the monoclinic space group Cm (No.8) and their three-dimensional [Ag3Ga8Se14]− anionic frameworks were comprised of AgSe4 and GaSe4 tetrahedrons. Their UV-Vis-near infrared diffuse reflectance spectra showed that 1 and 2 possessed wide band

A novel type Ⅱ BiOCl/CAU-17 2D/2D heterostructures photocatalyst was synthesized by in-situ growth of ultrathin BiOCl on the surface of CAU-17 nanorods through a solvothermal process. The 2D/2D heterostructures endow BiOCl/CAU-17 heterojunction with large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of CAU-17 can

[MnCr(oxalate)3]− possesses a two-dimensional ferromagnetic network that is an ideal system for the construction of multifunctional molecular materials based on ferromagnetism. This is because additional functions, such as ferroelectricity, can be hybridised by incorporating functional cations between the layers. However, the majority of [MnCr(oxalate)3]− networks readily incorporate solvent molecules

The cluster [Co38As12(CO)50]4– was obtained by pyrolysis of [Co6As(CO)16]−. The metal cage features a closed-packed core inside a Co/As shell that progressively deforms from a cubic face-centered symmetry. The redox and acid–base reactivities were determined by cyclic voltammetry and spectrophotometric titrations. The calculated electron density revealed the shell-constrained distribution of the atomic

Li2ZnTi3O8 (LZTO) as an anode of lithium-ion batteries, attracts great interests. However, the low electrical conductivity is the biggest obstacle to practical applications for LZTO. The presence of Ti3+ can improve the electronic conductivity of LZTO via the introduction of oxygen vacancies (OVs). Nevertheless, excess OVs can cause severe lattice distortion, and then worsen the electrochemical performance

Investigations into the reactivity, properties, and applications of osmium(IV) tetraaryl complexes have been hampered by their low yielding syntheses from volatile and toxic OsO4 (typically ≤34%). Here we show that known air-stable M(aryl)4 compounds (M = Os, Ru; aryl = 2-tolyl, 2,5-xylyl) can be prepared in ≤73% yields using new, less hazardous (Oct4N)2[MX6] precursors (M = Os, Ru; X = Cl, Br). This

Mineral exploration forms a key approach to unveil functional battery electrode materials. Synthetic preparation of naturally found minerals and their derivatives can aid in design of new electrodes. Herein, saranchinaite Na2Cu(SO4)2 and its hydrated derivative krӧhnkite Na2Cu(SO4)2.2H2O bisulfate minerals have been prepared using a facile spray drying route for the first time. The phase stability

The synthesis of mixed silicon and germanium clusters SixGe6-x{N(SiMe3)Dipp}4 1-3 (x = 3.7, 3.1, 2.1) with amido-substituents and two unsubstituted germanium atoms was achieved in co-reductions using the tribromosilane {N(SiMe3)Dipp}SiBr3 and the tribromogermane {N(SiMe3)Dipp}GeBr3 in three different ratios. The ratio of Si and Ge used for the synthesis of 1-3 approximately corresponds to that in the

Biomimetic di- or multimetallic complexes featuring NxHy species in a sulfur-rich coordination sphere have attracted considerable attention in modelling the possible scenarios of biological nitrogen fixation by nitrogenases. Although the active site of nitrogenase is a complex heterometallic sulfur cluster, the feasibility of NxHy species on different metal sites is scarcely investigated. Herein, we

A series of acetylacetone-protected lanthanide–titanium–oxo clusters (LTOCs), formulated as [La6Ti(μ3-OH)8(acac)12(CH3O)2(CH3OH)6] (La6Ti; Hacac = acetylacetone) and [Ln9Ti2(μ4-O)(μ3-OH)14(acac)17(CH3O)2(CH3OH)3] [Ln = Eu (Eu9Ti2) and Tb (Tb9Ti2)], were synthesized through the reactions of LnCl3·6H2O (Ln = La, Eu, and Tb), Hacac, Ti(OiPr)4, and triethylamine in methanol. Crystal structural analysis

We have synthesized Pb[C2O5], an inorganic pyrocarbonate salt, in a laser-heated diamond anvil cell (LH-DAC) at 30 GPa by heating a Pb[CO3] + CO2 mixture to ≈2000(200) K. Inorganic pyrocarbonates contain isolated [C2O5]2– groups without functional groups attached. The [C2O5]2– groups consist of two oxygen-sharing [CO3]3– groups. Pb[C2O5] was characterized by synchrotron-based single-crystal structure

Revealing the interaction between electrons and phonons, e.g., electron–phonon coupling or decoupling, is a great challenge for physics and functional material communities. For rare-earth single crystals, the electron–phonon coupling and fluorescence behaviors strongly depend on the crystal structure and constituent motifs. Here, we proposed a universal “quasi-free O” as an effective structural motif

The IrIII/NiII-metallaphotoredox-catalyzed enantioselective decarboxylative arylation of α-amino acids has been systematically investigated using density functional theory calculations. The combination of oxidative quenching (IrIII–*IrIII–IrIV–IrIII) or reductive quenching (IrIII–*IrIII–IrII–IrIII) cycle with the nickel catalytic cycle (NiII–NiI–NiIII–NiII) is possible. The favorable reaction mechanism

Solid nonlinear optical (NLO) materials with switchable second-harmonic generation (SHG) on/off state show a strong potential application in photo-electronic devices. Sustained progress has been made through the persistent exploration of the NLO materials, and numerous switchable crystals viewed as single-step SHG switching were reported. However, the multi-step switching with SHG “off-on-off” states

This paper presents a simple, highly selective, and efficient (isolated yield 68%) synthesis of a novel D3h-symmetry prismatic tris-(ferrocene-1,1ʹ-diyl) organic cage (FcB-cage) by incorporating the boronate ester as a linkage motif. 1,1ʹ-Diboronated derivatives of ferrocene and 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) were used as the starting materials. The synthesized cage was comprehensively

Nanostructured H2 evolution cocatalysts are able to promote charge separation and thus enhance the efficiency of the photocatalytic H2 evolution reaction (HER). However, the nanosized cocatalyst particles are easily detached from the surfaces of semiconductors or severely aggregated in reaction systems, which not only greatly reduces the photocatalytic HER efficiency during long-term use but also greatly