Aryl radical formation by aryl halide bond cleavage by a N-heterocyclic carbene catalyst
Aryl halides with a benzene ring directly bonded to a halogen atom are readily available and chemically stable, so they are used as a source of benzene rings in organic synthesis. For example, a chemical reaction that generates a highly reactive aryl.....»»
Halide gets Camera Control support; also available from Lock Screen
With the Camera Control button one of the headline features of the iPhone 16 line-up, developer Lux has announced that the Halide app will be able to take advantage of it. You’ll be able to set the button to open Halide instead of the default ca.....»»
Study shows microbial diversity differences in volcanic cones and craters
Volcanic activity alters the Earth's surface and promotes the development of new ecosystems, providing valuable models for studying soil formation processes such as microbial composition and vegetation succession. Increasing evidence suggests that so.....»»
Flowers use adjustable "paint by numbers" petal designs to attract pollinators, researchers discover
Flowers like hibiscus use an invisible blueprint established very early in petal formation that dictates the size of their bullseyes—a crucial pre-pattern that can significantly impact their ability to attract pollinating bees......»»
James Webb trains its sights on the Extreme Outer Galaxy
A gorgeous new image from the James Webb Space Telescope shows a bustling region of star formation at the distant edge of the Milky Way......»»
Enzyme-inspired catalyst puts chemicals in right position to make ethers
Taking inspiration from enzymes, chemists at the University of Illinois Urbana-Champaign developed a catalyst to simplify the synthesis of ethers, key functional components of many drugs, foods, personal care items and other consumer goods. The catal.....»»
Discovery about ice layer formation in ice sheets can improve sea level rise predictions
A newly discovered mechanism for the flow and freezing of ice sheet meltwater could improve estimates of sea level rise around the globe......»»
Catalyzing environmental cleanup: A highly active and selective molecular catalyst and electrified membrane
Some chemicals create environmental problems; others, fortunately, can help clean them up. Chemists from Yale University and their colleagues have developed an electrochemical catalyst and membrane that offers an efficient and sustainable way to trea.....»»
Elucidating the mechanism underlying de novo membrane formation during gametogenesis
Researchers at University of Tsukuba have meticulously examined the gametogenesis of budding yeast, a process involving meiosis and spore formation, using live imaging techniques. Their findings reveal that during sporulation, the endoplasmic reticul.....»»
Chromium doping enhances catalyst performance for faster oxygen evolution
A group of researchers has made significant progress in developing cost-effective catalysts for the oxygen evolution reaction (OER), a critical component in technologies such as water splitting and metal-air batteries......»»
Formation of super-Earths proven limited near metal-poor stars
In a new study, astronomers report novel evidence regarding the limits of planet formation, finding that after a certain point, planets larger than Earth have difficulty forming near low-metallicity stars......»»
Zeolite catalyst method uses microwaves to convert waste cooking oil into useful chemicals
Researchers from Kyushu University have revealed that a zeolite material called Na-ZSM-5 is effective in improving the chemical conversion of biomass into olefins—a precursor chemical that makes everything from plastics to pharmaceuticals—using m.....»»
Researchers reveal performance boost mechanism in single-atom catalyst for oxygen evolution reaction
Hydrogen energy, with its green, low-carbon and high-calorific-value properties, is emerging as the new key to solving the energy crisis. Electrochemically, water splitting has garnered much attention as a promising hydrogen production technique. How.....»»
Green hydrogen: MXenes show talent as catalyst for oxygen evolution reaction
The MXene class of materials has many talents. An international team led by HZB chemist Michelle Browne has now demonstrated that MXenes, properly functionalized, are excellent catalysts for the oxygen evolution reaction in electrolytic water splitti.....»»
Zeolite catalyst method use microwaves to convert waste cooking oil into useful chemicals
Researchers from Kyushu University have revealed that a zeolite material called Na-ZSM-5 is effective in improving the chemical conversion of biomass into olefins—a precursor chemical that makes everything from plastics to pharmaceuticals—using m.....»»
Theoretical model for multisite alloy catalyst design quantifies active site contributions
Two research teams have developed a novel theoretical model to describe the overall activity of multisite alloy catalysts. In their study published in Journal of the American Chemical Society, they propose a concept of equivalent site ratio and succe.....»»
Youth shared-housing program that serves Richmond could be a model elsewhere
For two Virginia Commonwealth University social work professors and their collaborators, it started with "radical imagination"—a youth shared-housing model in Richmond unlike any in the country......»»
Chemists create industrially important alkyl amines from dinitrogen and alkenes
A critical chemical bond can be assembled using dinitrogen (N2)—a molecule freely available in the air around us—chemists at RIKEN have shown in a new article published in Nature......»»
A space oddity—small exoplanet challenges existing theories on planet formation
A research team led by Lund University in Sweden has discovered a small planet that displays peculiar orbital motion. The shimmying planet, located 455 light-years from Earth, shows that planetary systems can be considerably more complex than researc.....»»
Gravitational wave observatories could detect primordial black holes speeding through the solar system
Cosmologists have long hypothesized that the conditions of the early universe could have caused the formation of black holes not long after the Big Bang. These "primordial black holes" have a much wider mass range than those that formed in the later.....»»
Copper-based catalyst paves the way for sustainable ammonia production
Ammonia plays a critical role in food production and industrial development, with a global market size of approximately 175 million metric tons and a market value of $67 billion. Likewise, it is a high-energy-density carrier, making it a key player i.....»»