Articles tagged with Atoms
Researchers propose a new bonding theory that illustrates how each boron atom satisfies the octet rule and how alternating σ bonds further stabilize the 2D sheet. The theory introduces a new form of resonance, allowing delocalization of σ electrons within the plane.
Researchers at UChicago develop a more efficient and less toxic method to create MXene material, enabling new applications in electronics and energy storage. The breakthrough allows for the production of large amounts of materials with minimal waste, paving the way for innovative technologies.
Researchers at the University of Missouri are acquiring a new transmission electron microscope (TEM) with a $800,000 grant from the National Science Foundation. The TEM will allow them to conduct experiments in real-time and gain a greater understanding of material structure at an atomic level.
Researchers from Osaka University have stabilized atomic carbon for common reaction conditions in organic chemistry, enabling the synthesis of complex drugs in one step. This breakthrough simplifies and lowers the cost of pharmaceutical synthesis.
Researchers at UCF have developed single-atom platinum catalysts that reduce the amount of precious metals needed in catalytic converters. These improvements can enhance catalytic performance while minimizing environmental harm.
Researchers at the University of California, Riverside, have created a novel method to break down per- and polyfluoroalkyl substances (PFAS), also known as 'forever chemicals', in contaminated water. The hydrogen-infusion and UV light-based process achieves high molecular destruction rates without generating unwanted byproducts.
Scientists at Tel Aviv University have developed a method to create the thinnest possible ladder steps made of distinct electric potentials, which can be used as independent information units. The discovery enables the creation of novel devices with potential applications in electronics and optomechanics.
Researchers have created atomic-level 3D models using 'atom probe tomography' to study the effects of tiny amounts of substances on semiconductor materials. This allows for better understanding of material properties and potential applications in sustainable technology.
Researchers develop a new strategy to activate methane under mild conditions by confining copper atoms in ultrathin two-dimensional Ru nanosheets. This approach enables highly selective and efficient room-temperature conversion of methane to liquid C1 oxygenates with an over 99% selectivity.
Scientists have developed a method to control chemical reactions in a single molecule by applying voltage pulses, resulting in unprecedented selectivity. By fine-tuning the voltage, researchers can interconvert different products formed during the reaction.
Huddersfield researchers are working on a new project to develop novel and sustainable molecular materials that harness light to drive useful chemical reactions. The project aims to address the limitation of using rare and expensive elements like ruthenium and iridium in current applications. By exploring the intrinsic properties of li...
Researchers at Politecnico di Milano developed a new nanomaterial with a superfluorinated gold cluster, exhibiting unique optical and catalytic properties. The findings have potential applications in precision medicine and the green transition, including diagnostic and therapeutic applications and efficient production of green hydrogen.
A team from Tokyo Tech has developed a new methodology to observe dynamic bonding between atoms, revealing transient structures resulting from atomic assembly. They used video tracking and ADF-STEM to directly visualize metallic dimers and trimers, achieving high atom discrimination accuracy.
Researchers have discovered a novel chemical reaction that allows for the efficient migration of molecular fragments, enabling the production of health-promoting ingredients in food. This groundbreaking discovery has the potential to revolutionize the field of chemistry.
Researchers at Norwegian University of Science and Technology have discovered a method for describing molecules in optical cavities, which could lead to breakthroughs in chemistry and pharmaceutical industries. The study uses molecular orbital theory to predict how molecules will react inside optical cavities.
NIST researchers have developed a new atomic radio receiver that boosts signal strength 100-fold by enclosing cesium atoms in a custom copper structure resembling headphones. The structure acts as a split-ring resonator, enhancing the incoming radio signal and enabling the detection of weaker signals.
Researchers at Waseda University demonstrate a novel zirconocene-catalyzed epoxide ring-opening reaction under visible light, expanding the reaction scope and regioselectivity. The approach enables accessible synthesis of elusive alcohol products with improved efficiency and environmental sustainability.
Researchers have successfully synthesized a new type of carbon allotrope called holey graphyne, which has semiconductor properties and can be used in various applications. The material was created using a bottom-up approach and consists of alternately linked benzene rings and C≡C bonds.
Researchers aim to improve stability and efficiency of catalytic materials using quantum mechanics-based calculations and computational simulations. The goal is to create more effective catalysts that reduce pollution and energy consumption.
MIT researchers devise a chemical reaction that allows them to synthesize phosphorus-containing rings using a novel spring-loaded molecule. This method enables the creation of useful compounds with potential applications in catalysts and pharmaceuticals.
Researchers have synthesized K2N6, an exotic compound containing nitrogen groups and packing explosive amounts of energy. The new material has a hexagonal structure with intermediate single and double bonds between nitrogen atoms.
Scientists have proposed a new two-step methodology to eliminate polychlorinated biphenyls (PCB) from the environment. The approach involves chemical functionalization, replacing chlorine atoms with hydroxyl groups, followed by thermal destruction at lower temperatures than traditional incineration methods.
UC Riverside scientists developed a technique to map tryptophan production, opening the door to new treatment drugs. By understanding how bacteria make tryptophan, researchers can create enzymes that shut down this process, killing invasive bacterial cells without affecting human cells.
Researchers develop small-molecule serial femtosecond crystallography, enabling precise analysis of complex materials. The technique reveals accurate atomic structures of previously unsolvable compounds.
Scientists at the University of Missouri study photodissociation reactions on the quantum level, revealing strong quantum effects that challenge classical 'billiard-ball' models. The research could lead to a better understanding of atmospheric chemistry and develop new theoretical frameworks.
Researchers from Tokyo University of Science developed a high-quality crystalline interface using quasi-homo-epitaxial growth, which eliminated mobility issues and enabled spontaneous electron transfer. This breakthrough could lead to highly efficient flexible solar cells and wearable electronic devices.
Researchers at MIT have directly observed the interplay of interactions and quantum mechanics in a rotating fluid of ultracold atoms. The team created a spinning cloud of sodium atoms, which formed a needle-like structure before breaking into a crystalline pattern resembling miniature quantum tornadoes.
Scientists confirm existence of sigma-hole, a phenomenon previously predicted but never directly observed. This breakthrough enables understanding of interactions between individual atoms or molecules, facilitating refinement of material and structural properties.
Researchers have successfully imaged the spin of an individual molecule using electron spin resonance in a scanning tunneling microscope. This achievement allows for precise control of spin states and investigation of magnetic interactions between molecules.
Researchers discovered carbon residue in ancient ruby, indicating early life presence, and graphite changed surrounding rocks' chemistry for favourable conditions
The study explores chromium oxides, magnetic compounds used in old tapes, and finds that adding oxygen atoms increases metallic properties. This allows for precise control over electrical conductance, enabling the design of molecular-sized components with vast processing and storage capacities.
Researchers have solved the mystery of chlorine's role in perovskite solar cells by imaging atoms at the surface. The team found that chlorine is incorporated into the material through grain boundaries, increasing stability and efficiency. An optimal concentration of chlorine was discovered to deliver high stability.
A new methodology, EMARS, was developed to directly identify the activity origin of Pt/Al2O3 industrial reforming catalyst by analyzing over 18,000 Pt atoms. The study found that density of supported Pt1 single atoms and Pt-Pt distance larger than 0.38 nm are correlated with aromatic production activity.
A team of astronomers has uncovered the physical and chemical effects of a protostellar jet in the Orion Nebula, including compression, heating, and destruction of dust grains. The study reveals a significant increase in gas phase abundance of heavy elements such as iron and nickel.
A novel method for imaging vibrations and movements of atoms in catalysts has been developed by a collaboration of internationally leading researchers. The new analytical method reveals a dynamic behavior of the atoms, contrary to the long-held expectation that atoms in nanoparticles are static during observations.
Researchers from the University of Nottingham have developed a novel catalyst that combines homogeneous and heterogeneous features, defying traditional categorization. The discovery holds promise for increasing the active surface area available for catalysis, leading to more efficient and sustainable production of molecules.
Researchers created a catalyst with 100% selectivity in producing propylene, a key precursor to plastics and fabric manufacturing. The single-atom alloy catalysts are more efficient, run reactions under milder conditions, and require less energy to produce.
Rice University engineers developed a strategy to increase the number of transition-metal single atoms that can be loaded onto a carbon carrier using graphene quantum dots. The new technique showed significant improvement in electrochemical reduction of carbon dioxide compared to lower metal loading catalysts.
Researchers at Yokohama National University have discovered a new family of atomic-thin electride materials, which could have potential applications in nanotechnologies. The newly discovered electrides are insulators, but unlike other insulators, they can be made conductive by adding or removing electrons.
A team of UChicago chemists has developed a way to easily edit molecule structures, paving the way for faster and more efficient chemical discoveries. This breakthrough method allows for direct nitrogen deletion from molecules, bypassing traditional intermediate steps.
Researchers have introduced a new anionic organoborane compound, borafluorene, which is a system of three carbon rings joined at the edges with a boron atom. The team used carbenes to stabilize the elusive anions and demonstrated their potential as chemical building blocks.
Scientists have created a cube-shaped iron-sulfur cluster that can support a multiple bond between iron and nitrogen, a structural motif involved in biological nitrogen fixation. The discovery shows the cluster's ability to accommodate an unusual bond without distorting its structure.
Researchers at Vienna University of Technology have developed a new microscopy technique that allows for the measurement of atomic acidity on surfaces. This breakthrough enables analysis of catalysts on an atomic scale, which is crucial for improving chemical reactions.
Researchers at Heidelberg University have created a new reaction pathway to enable the controlled creation of specific optically active defects in carbon nanotubes. These defects emit light in the near-infrared and show single-photon emission, paving the way for applications in quantum cryptography and biological imaging.
Researchers at Skoltech created a new electronegativity scale, improving Pauling's original scale with a formula that treats molecule stabilization as a multiplicative effect. The new scale works for both small and large differences in electronegativity, accurately predicting chemical bond energies and reactions.
Researchers at RUDN University found that fluorine-containing compounds can simplify the purification of catalysts from reaction products, making them reusable. This technology could improve ruthenium-based catalysts for pharmaceutical and industrial applications.
Researchers at Chalmers University of Technology have derived equations that explain how changes in an atom's size affect its total energy and electronegativity. The study, published in Chemical Science, paves the way for advances in material development and could help identify new opportunities for high-pressure synthesis.
Researchers at the University of Toronto have made a groundbreaking discovery in the field of reaction dynamics, shedding light on the behavior of molecules during collisions. The 'knock-on chemistry' phenomenon reveals that reaction products emerge in a straight line, moving in the same direction as the incoming reagent atom.
Researchers found that modifying the surface of electrodes with bismuth can significantly increase electrical current, driving the reactions that split water into oxygen and hydrogen. This process could lead to a clean and sustainable energy future.
Researchers from Osaka University studied single atoms of rutherfordium reacting with common bases, uncovering differences in reactivity due to relativistic chemistry. These findings may lead to new applications and materials development.
Researchers found high concentrations of bromine chloride in polluted continental regions, significantly impacting wintertime air quality. The study suggests that uncontrolled coal burning is a major source of reactive halogens, driving increased ozone production and secondary aerosol formation.
Researchers at TU Wien have developed a new approach to single-atom catalysis, which can lead to more effective and cost-efficient catalysts. The study reveals that customized properties through tailored surfaces can change the reactivity of individual atoms, making expensive metals like platinum less necessary.
The molecules generated at the University of Bonn have a trapezoidal arrangement of bonding partners around the silicon atom, which is energetically unfavorable. Despite this, they are found to be extremely stable and can be stored for weeks without degradation.
Scientists have made a breakthrough in understanding the ultrafast motion of atoms and electrons, with implications for controlling materials through light. By observing the distortion of molecular structures and electron transfer, researchers can now distinguish between atomic motion and electronic dynamics.
Researchers at UC Santa Barbara have developed a new approach to boost NMR signal detection in previously 'invisible' regions. By using dynamic nuclear polarization with transition metal vanadium, they have created hyperfine DNP spectroscopy, which offers a broader frequency range and can analyze local chemistry around transition metals.
Chemists at Goethe University Frankfurt have directly observed and characterized a metallonitrene diradical with a single metal-nitrogen bond. This discovery enables the targeted insertion of nitrogen atoms into carbon-hydrogen bonds, contributing to the development of novel 'green' syntheses.
Researchers from Skoltech have created a universal approach for predicting material properties based on their chemical composition. By assigning a Mendeleev number (MN) to each element, they have shown that this system is more effective than empirical solutions in identifying promising compounds with unique properties.
Researchers at UW-Madison develop a method to control the growth of twisting, microscopic spirals of two-dimensional materials. By utilizing screw dislocations and curved surfaces, they create new properties that can be exploited to study quantum physics on the nanoscale.
Researchers at Osaka City University have discovered metal ions as a key component to produce malic acid, a molecule with 4 carbon atoms, through artificial photosynthesis. This innovation enables the exploration of CO2 as a raw material for producing complex materials.
Researchers have developed a novel approach to manipulate catalyst active centers at the subnanometer scale, using nano-confinement to host multiple Fe and Cu single atoms in graphitic carbon nitride. This strategy enhances electrocatalytic performance and efficiency, particularly for nitrogen reduction reactions.