Article
|
Open Access
Featured
-
-
Article
| Open AccessUltrafast electron transfer at the In2O3/Nb2O5 S-scheme interface for CO2 photoreduction
In2O3/Nb2O5 S-scheme heterojunctions fabricated via a one-step electrospinning technique facilitate contact between two phases, fostering ultrafast interfacial electron transfer to prolong lifetimes and improve CO2 photoreduction performance.
- Xianyu Deng
- , Jianjun Zhang
- & Jiaguo Yu
-
Article
| Open AccessSupramolecular assembly activated single-molecule phosphorescence resonance energy transfer for near-infrared targeted cell imaging
Phosphorescence resonance energy transfer systems have potential in light-harvesting and bioimaging, but host-guest systems are rarely explored. Here, the authors report the development of a macrocyclic host-guest system for targeted cell imaging.
- Xiaolu Zhou
- , Xue Bai
- & Yu Liu
-
Article
| Open AccessDifluorocarbene-induced [1,2]- and [2,3]-Stevens rearrangement of tertiary amines
The Stevens rearrangements are a fundamental and powerful tool in the synthetic organic chemistry repertoire, but these transformations are known to be limited in their tolerance for some common functional groups. Here, the authors present a methodology that uses a difluorocarbene unit to induce a Stevens rearrangement, which enables smooth inclusion of allylic and propargyl moieties in the transformation.
- Jianke Su
- , Yu Guo
- & Qiuling Song
-
Perspective
| Open AccessThe role of electrocatalytic materials for developing post-lithium metal||sulfur batteries
Post-lithium metal||S batteries show promise for practical applications, but limited understanding of cell parameters and sulfur electrocatalytic conversion hampers progress. This Perspective provides critical insights on potential research directions for designing practical post-lithium metal||S batteries.
- Chao Ye
- , Huan Li
- & Shi-Zhang Qiao
-
Article
| Open AccessPicosecond reactions of excited radical ion super-reductants
Classical photochemistry requires nanosecond excited-state lifetimes for diffusion-controlled reactions. Here the authors provide direct evidence for the elusive pre-association between radical ions and substrate molecules, enabling photoinduced electron transfer beyond the diffusion limit.
- Björn Pfund
- , Deyanira Gejsnæs-Schaad
- & Oliver S. Wenger
-
Article
| Open AccessHeterogeneous organophotocatalytic HBr oxidation coupled with oxygen reduction for boosting bromination of arenes
Developing mild photocatalytic bromination strategies using sustainable bromo source has been attracting intense interests, but there is still much room for improvement. Here, the authors report heterogenous organophotocatalytic HBr oxidation coupled with oxygen reduction to furnish Br2 and H2O2 for effective bromination of arenes.
- Jie Wang
- , Jiahao Liang
- & Bin Liu
-
Article
| Open AccessCharge redistribution of a spatially differentiated ferroelectric Bi4Ti3O12 single crystal for photocatalytic overall water splitting
Via specific acid etching, the authors report the production of spatially differentiated Bi4Ti3O12 nanosheets to accelerate photogenerated charge transfer and separation for effective water splitting in a one-step excitation system with a solar-to-hydrogen efficiency of 0.1%.
- Guangri Jia
- , Fusai Sun
- & Jimmy C. Yu
-
Article
| Open AccessDirect observation of photoinduced sequential spin transition in a halogen-bonded hybrid system by complementary ultrafast optical and electron probes
Halogen bond is desired for tuning electronic properties by external stimuli. Here, authors reveal a sequential activation of spin crossover and dimer softening, unveiling a key transient state in a prototypical halogen-bonded material.
- Yifeng Jiang
- , Stuart Hayes
- & R. J. Dwayne Miller
-
Article
| Open AccessA combined experimental and computational study of ligand-controlled Chan-Lam coupling of sulfenamides
Sulfenamides are a class of divalent sulfur-derived scaffolds featuring an S-N bond with many industrial applications, however, they are also challenging substrates for synthetic transformations. Here, the authors present a highly chemoselective ligand-controlled Chan–Lam coupling of sulfenamides as a straightforward route to N-arylated sulfenamides.
- Kaiming Han
- , Hong Liu
- & Tiezheng Jia
-
Article
| Open AccessHighly reversible transition metal migration in superstructure-free Li-rich oxide boosting voltage stability and redox symmetry
The ordering of superstructures plays a critical role in mitigating transition metal migration, voltage decay, and maintaining redox symmetry in Li-rich layered oxides. Here, this study reveals that even in the absence of such superstructure ordering, cathodes can still attain these crucial characteristics.
- Tianwei Cui
- , Jialiang Xu
- & Yongzhu Fu
-
Article
| Open AccessBicarbonate-binding catalysis for the enantioselective desymmetrization of keto sulfonium salts
Although anion-binding processes are well-known for their crucial role in molecular recognition, this type of phenomenon has only recently been utilized for catalysis. Here, the authors present an enantioselective desymmetrization of cyclic keto sulfonium salts through enantioselective deprotonation/ring opening process by anion-binding catalysis.
- José Alemán
- , Jorge Humbrías-Martín
- & Jose A. Fernández-Salas
-
Article
| Open AccessMolecular ferroelectric with low-magnetic-field magnetoelectricity at room temperature
The authors report a molecular ferroelectric (TMCM)[FeCl4], which shows strong magnetostrictive and magnetoelectric effects at room temperature. The spin-lattice coupling of FeCl4 and flexible structure of organic cations are responsible for these effects.
- Zhao-Bo Hu
- , Xinyu Yang
- & You Song
-
Article
| Open AccessSelf-protecting CoFeAl-layered double hydroxides enable stable and efficient brine oxidation at 2 A cm−2
Developing high-performance electrodes for catalyzing brine oxidation is essential for cost effective hydrogen production. Here, this study reveals the self-protective mechanism of CoFeAl layered double hydroxides, enabling stable operation in the presence of concentrated seawater at 2 A cm−2.
- Wei Liu
- , Jiage Yu
- & Xiaoming Sun
-
Article
| Open AccessRecovery of europium from E-waste using redox active tetrathiotungstate ligands
Rare-earth elements (REEs) are vital to the modern economy, yet their mining poses both geopolitical and environmental challenges. Here, authors present a highly selective method for the recovery of europium from spent fluorescent lamps using redox active tetrathiotungstate ligands.
- Marie A. Perrin
- , Paul Dutheil
- & Victor Mougel
-
Article
| Open AccessChatMOF: an artificial intelligence system for predicting and generating metal-organic frameworks using large language models
LLMs can be augmented with tools to increase their capabilities. Here, authors have developed an artificial intelligence system called ChatMOF combining LLMs and specialised libraries and utilities to predict and generate metal-organic frameworks.
- Yeonghun Kang
- & Jihan Kim
-
Article
| Open AccessQuantitative prediction of rate constants and its application to organic emitters
The quantitative prediction of rate constants and quantum yields is crucial to understand various phenomena and their mechanisms in nature. Here, the authors apply quantum chemical calculation to reproduce experimental data of multiple-resonance thermally activated delayed fluorescence emitters.
- Katsuyuki Shizu
- & Hironori Kaji
-
Article
| Open AccessCircumventing bottlenecks in H2O2 photosynthesis over carbon nitride with iodine redox chemistry and electric field effects
H2O2 photosynthesis using g-C3N4 is considered an alternative to anthraquinone processes. Inspired by the optical instability of potassium iodide, the I− /I3− internal redox mediator and external electric field are integrated into the g-C3N4, achieving satisfactory H2O2 production.
- Chang-Wei Bai
- , Lian-Lian Liu
- & Han-Qing Yu
-
Article
| Open AccessRedox dynamics and surface structures of an active palladium catalyst during methane oxidation
Palladium-based catalysts are highly effective for the complete oxidation of methane. Here, the authors employ operando transmission electron microscopy, near-ambient pressure X-ray photoelectron spectroscopy, and density functional theory calculations to investigate the active state and catalytic function of Pd nanoparticles in methane oxidation.
- Shengnan Yue
- , C. S. Praveen
- & Xing Huang
-
Article
| Open AccessEfficient intersystem crossing and tunable ultralong organic room-temperature phosphorescence via doping polyvinylpyrrolidone with polyaromatic hydrocarbons
Room temperature phosphorescent polymers have potential in a range of applications, but achieving the desired properties can be challenging. Here, the authors report the development of such polymer materials by doping with polyaromatic hydrocarbons.
- Guangxin Yang
- , Subin Hao
- & Li Dang
-
Article
| Open AccessConcentrated solar CO2 reduction in H2O vapour with >1% energy conversion efficiency
This work reports a single-atom Ni incorporated CeO2 catalyst that boosts the efficiency of solar CO2 reduction under concentrated light irradiation.
- Yuqi Ren
- , Yiwei Fu
- & Maochang Liu
-
Article
| Open AccessInsight into selectivity of photocatalytic methane oxidation to formaldehyde on tungsten trioxide
Tungsten trioxide (WO3) is considered the most promising photocatalyst for the highly selective oxidation of methane to formaldehyde, though the origins of its catalytic activity and reaction mechanism are still debated. Here, the authors use WO3 with {001} and {110} facets as model photocatalysts, demonstrating that the photocatalytic oxidation of methane to formaldehyde in WO3 depends on the surface structure, leading to different formaldehyde selectivity.
- Yingying Fan
- , Yuheng Jiang
- & Zhiyong Tang
-
Article
| Open AccessRevealing the structural evolution of CuAg composites during electrochemical carbon monoxide reduction
Revealing catalyst structural evolution during catalysis is critical. Here, authors reveal that a Cu-Ag oxide precursor undergoes a transformation during CO electroreduction to a composite consisting of Ag nanoparticles enveloped by thin layers of amorphous Cu, which is likely the real active phase.
- Di Wang
- , Hyun Dong Jung
- & Lei Wang
-
Article
| Open AccessA dual spin-controlled chiral two-/three-dimensional perovskite artificial leaf for efficient overall photoelectrochemical water splitting
Enhancing the efficiency of solar-driven water splitting is challenging but highly interesting. Here the authors report a dual spin-controlled 2D/3D perovskite photoelectrode that achieves 12.55% efficiency by utilizing the chiral-induced spin selectivity phenomenon.
- Hyungsoo Lee
- , Chan Uk Lee
- & Jooho Moon
-
Article
| Open AccessPhotochemically responsive polymer films enable tunable gliding flights
Miniature passive fliers are of interest, but there are challenges in controlling their motion. Here, the authors report the use of light-responsive thin films for optical control of the gliding of passive fliers.
- Jianfeng Yang
- , M. Ravi Shankar
- & Hao Zeng
-
Article
| Open AccessWhy •CF2H is nucleophilic but •CF3 is electrophilic in reactions with heterocycles
Empirically observed regiochemistries indicate that the CF2H radical has a nucleophilic character similar to alkyl radicals, but the CF3 radical is electrophilic in reactions with heterocycles. Here, the authors report DFT calculations, reproducing experimental selectivities and leading to an explanation of this difference.
- Meng Duan
- , Qianzhen Shao
- & K. N. Houk
-
Article
| Open AccessMultiple photofluorochromic luminogens via catalyst-free alkene oxidative cleavage photoreaction for dynamic 4D codes encryption
Photochromic systems with high contrast and multiple colours are useful for responsive materials, but it is challenging to achieve multiple colours with one molecule. Here, the authors report a photochromic system controlled by oxidative cleavage on light irradiation.
- Lin Lu
- , Bo Wu
- & Ben Zhong Tang
-
Article
| Open AccessAtomically dispersed MoNi alloy catalyst for partial oxidation of methane
The catalytic partial oxidation of methane (POM) is a promising technology for synthesizing syngas but suffers from severe over-oxidation on the catalyst surface. Here the authors demonstrate that regulating O* occupation in an atomically dispersed MoNi alloy can achieve high catalytic performance for POM.
- Zheyuan Ding
- , Sai Chen
- & Jinlong Gong
-
Article
| Open AccessPhotocatalytic toluene oxidation with nickel-mediated cascaded active units over Ni/Bi2WO6 monolayers
By introducing Ni dopants into monolayer Bi2WO6, Bi/O frustrated Lewis pairs, unsaturated W atoms, and Ni active units are formed. The authors show that these units facilitate oxygen species transfer and enhance photocatalytic toluene oxidation.
- Yingzhang Shi
- , Peng Li
- & Xianzhi Fu
-
Article
| Open AccessHigh-performance near-infrared OLEDs maximized at 925 nm and 1022 nm through interfacial energy transfer
The low photoluminescence quantum yield of near-infrared (NIR) emitters has limited their application in organic light-emitting diodes (OLEDs). Here, authors realize NIR OLEDs through interfacial energy transfer from platinum(II) complexes to a non-fullerene acceptor based on a sandwiched structure.
- Chieh-Ming Hung
- , Sheng-Fu Wang
- & Pi-Tai Chou
-
Article
| Open AccessAtroposelective synthesis of biaxial bridged eight-membered terphenyls via a Co/SPDO-catalyzed aerobic oxidative coupling/desymmetrization of phenols
Biaryl compounds with an axial chirality are valuable architectures but few methods have been developed for the construction of bridged biaryls, a subclass of these compounds that bear a tether to connect the two arenes and form a medium-sized ring. Here, the authors design a Co/SPDO-catalyzed aerobic oxidative coupling/desymmetrization sequence of prochiral phenols for the enantioselective synthesis of biaxial bridged m-terphenyls embedded in an azocane.
- Shuang-Hu Wang
- , Shi-Qiang Wei
- & Tong-Mei Ding
-
Article
| Open AccessCO electrolysis to multicarbon products over grain boundary-rich Cu nanoparticles in membrane electrode assembly electrolyzers
Producing valuable chemicals like ethylene via catalytic CO conversion is an important nonpetroleum route. Here, authors demonstrate high-rate electrosynthesis of multicarbon chemicals via CO electrolysis, with a multicarbon product partial current density of 4.35 A cm−2 at a cell voltage of 2.78 V.
- Hefei Li
- , Pengfei Wei
- & Xinhe Bao
-
Article
| Open AccessX-ray radiation damage cycle of solvated inorganic ions
A radiation damage cycle in X-ray-ionized solvated Mg ions is reported by the authors leading to production of water radicals and low-energy electrons. The Mg ion ends in its initial state quickly and can restart the cycle, multiplying the local damage.
- Dana Bloß
- , Florian Trinter
- & Andreas Hans
-
Article
| Open AccessCatalytic asymmetric synthesis of planar-chiral dianthranilides via (Dynamic) kinetic resolution
Chirality has long fascinated chemists, but asymmetric synthesis has largely focused on central, axial, and helical chirality to date. Here, the authors synthesize dianthranilides with planar chirality, via cinchona alkaloid-catalyzed (dynamic) kinetic resolution.
- Chun-Yan Guan
- , Shuai Zou
- & Guang-Jian Mei
-
Article
| Open AccessMolecular-strain induced phosphinidene reactivity of a phosphanorcaradiene
Phosphanorcaradienes can serve as synthons for transient phosphinidene but the synthesis remains challenging. Here, the authors report a synthesis protocol for a phosphanorcaradiene, in which one of the benzene rings is intramolecularly dearomatized through attachment to the phosphorus atom.
- Yizhen Chen
- , Peifeng Su
- & Gengwen Tan
-
Article
| Open AccessPhoto-cycloaddition reactions of vinyldiazo compounds
Heterocycles, highly prized by the pharmaceutical industry, are often constructed from diazo compounds. Here, the authors report that direct photolysis of vinyldiazo compounds followed by [3+2]-cycloaddition gives access to these motifs.
- Ming Bao
- , Klaudia Łuczak
- & Michael P. Doyle
-
Article
| Open AccessCatalytic asymmetric [4 + 2] dearomative photocycloadditions of anthracene and its derivatives with alkenylazaarenes
While significant progress has been made in classical Diels-Alder reactions, the use of simple and inert feedstock chemicals under mild reaction conditions still remains challenging. Here the authors present the development of catalytic asymmetric [4 + 2] dearomative photocycloaddition involving anthracene and its derivatives with alkenylazaarenes.
- Dong Tian
- , Wenshuo Shi
- & Zhiyong Jiang
-
Article
| Open AccessOrganic and inorganic sublattice coupling in two-dimensional lead halide perovskites
By resonant pumping the organic cation in 2D perovskite, Fu et al. report the electronic and mechanical couplings between the organic and inorganic sublattices, evidenced by the reduced bandgap and modified lattice degree of freedom within the inorganic sublattice, and slow heat transfer process.
- Jianhui Fu
- , Tieyuan Bian
- & Tze Chien Sum
-
Article
| Open AccessA spatially localized DNA linear classifier for cancer diagnosis
Molecular computing is an emerging paradigm with a crucial role in clinical diagnosis. Here, authors develop a spatially localized, DNA-integrated circuits-based classifier, DNA IC-CLA, which enables accurate cancer diagnosis for clinical samples in a faster and more effective manner.
- Linlin Yang
- , Qian Tang
- & Da Han
-
Article
| Open AccessSupramolecular metallic foams with ultrahigh specific strength and sustainable recyclability
Porous materials with high strength are desirable for many applications. Here, the authors present a supramolecular metallic foam enabled by nanostructured liquid metals connected with high-density metal-ligand coordination to exhibit ultrahigh specific strength and recyclability.
- Xin Yang
- , Xin Huang
- & Xinxing Zhang
-
Article
| Open AccessEmergence of a short peptide based reductase via activation of the model hydride rich cofactor
Biological cofactors such as dihydronicotinamides are exploited by extant enzymes as hydride transfer agents and electron carriers but are generally inefficient to facilitate any reactions on their own. Here, the authors report short peptide-based amyloid nanotubes featuring exposed arrays of cationic and hydrophobic residues that can bind small hydride transfer agents (NaBH4) to facilitate efficient reduction of ester substrates in water.
- Ayan Chatterjee
- , Surashree Goswami
- & Dibyendu Das
-
Article
| Open AccessPretreatment-free SERS sensing of microplastics using a self-attention-based neural network on hierarchically porous Ag foams
Detection and identification of microplastics (MPs) in environmental samples is hampered by the need for isolation and pretreatment methods. Here, the authors combine porous Ag substrates with self-attention neural networks to directly identify six types of MPs in environmental samples.
- Olga Guselnikova
- , Andrii Trelin
- & Yusuke Yamauchi
-
Article
| Open AccessDynamics underlie the drug recognition mechanism by the efflux transporter EmrE
Here, the authors reveal the protonation of a single membrane embedded glutamate residue within the homodimer of the efflux transporter EmrE modulates the structure and dynamics in an allosteric manner using NMR spectroscopy.
- Jianping Li
- , Ampon Sae Her
- & Nathaniel J. Traaseth
-
Article
| Open AccessCobalt-catalyzed cross-electrophile coupling of alkynyl sulfides with unactivated chlorosilanes
Transition-metal catalyzed cross-electrophile coupling (XEC) is a powerful tool for the construction of molecules but XEC between carbon electrophile and chlorosilanes to access organosilicon compounds remains underdeveloped. Here the authors disclose a highly efficient cobalt-catalyzed cross-electrophile alkynylation of a broad range of unactivated chlorosilanes with alkynyl sulfides as a stable and practical alkynyl electrophiles.
- Donghui Xing
- , Jinlin Liu
- & Liangbin Huang
-
Article
| Open AccessInternal water circulation mediated synergistic co-hydrolysis of PET/cotton textile blends in gamma-valerolactone
Recycling strategies for mixed plastics and textile blends currently aim for recycling only one of the components. Here the authors demonstrate a water coupling strategy to co-hydrolyze polyester/cotton textile blends into polymer monomers and platform chemicals.
- Shun Zhang
- , Wenhao Xu
- & Yu-Zhong Wang
-
Article
| Open AccessZero-field J-spectroscopy of quadrupolar nuclei
Zero to ultralow-field NMR provides chemical information in the absence of a high magnetic field but it is difficult to measure molecules with quadrupolar nuclei due to their fast relaxation. This study examines zero-field J-spectra from isotopologues of ammonium cations, with quadrupolar nuclei, revealing the presence of a primary isotope effect of −58 mHz.
- Román Picazo-Frutos
- , Kirill F. Sheberstov
- & Danila A. Barskiy
-
Article
| Open AccessProton-coupled transport mechanism of the efflux pump NorA
Efflux pumps confer antibiotic resistance by coupling proton import with drug export. In this work, the authors uncover the proton-coupled transport mechanism for the clinically relevant efflux pump NorA from the pathogenic bacterium S. aureus.
- Jianping Li
- , Yan Li
- & Nathaniel J. Traaseth
-
Article
| Open AccessThe impact of magnesium content on lithium-magnesium alloy electrode performance with argyrodite solid electrolyte
All-solid-state lithium-based batteries require high stack pressure during operation. Here, we investigate the mechanical, transport, and interfacial properties of Li-rich magnesium alloy and show enhanced performance at low pressure and ambient temperature for alloy-based electrodes with less than 5 at% Mg content.
- Jack Aspinall
- , Krishnakanth Sada
- & Mauro Pasta
-
Article
| Open AccessEnantioselective nickel-catalyzed anodic oxidative dienylation and allylation reactions
Precision control of stereochemistry in radical reactions remains a formidable challenge. Here the authors demonstrate an electricity driven asymmetric Lewis acid catalysis to facilitate asymmetric dienylation and allylation reactions, resulting in the formation of all-carbon quaternary stereocenters.
- Qinglin Zhang
- , Jiayin Zhang
- & Chang Guo
-
Article
| Open AccessEnhancement of phase transition temperature through hydrogen bond modification in molecular ferroelectrics
The authors propose a hydrogen bond modification method to achieve introduction of polarization and enhancement of phase transition temperature in molecular ferroelectrics, exploring the piezoelectric prototype devices of the molecular ferroelectric.
- Yu-An Xiong
- , Sheng-Shun Duan
- & Yu-Meng You
Browse broader subjects
Browse narrower subjects
- Analytical chemistry
- Biochemistry
- Biosynthesis
- Catalysis
- Chemical biology
- Chemical education
- Chemical engineering
- Chemical safety
- Cheminformatics
- Chemistry publishing
- Communicating chemistry
- Coordination chemistry
- Electrochemistry
- Energy
- Environmental chemistry
- Green chemistry
- History of chemistry
- Inorganic chemistry
- Materials chemistry
- Medicinal chemistry
- Nuclear chemistry
- Organic chemistry
- Chemical origin of life
- Photochemistry
- Physical chemistry
- Polymer chemistry
- Process chemistry
- Supramolecular chemistry
- Surface chemistry
- Chemical synthesis
- Theoretical chemistry