Iridium-catalyzed Z-retentive asymmetric allylic substitution reactions
In synthetic organic chemistry, Z-olefins are a challenging synthetic target to produce in the lab due to their relative thermodynamic instability. The Z-olefins form an unsaturated compound with a CnH2n formula that can be readily isomerized. Analog.....»»
Mixing solutions in the world"s smallest test tubes
Researchers based at the University of Manchester have demonstrated a new method for imaging live chemical reactions with atomic resolution using nanoscale test tubes created using two-dimensional (2D) materials......»»
Binder-free MWW-type titanosilicate for selective and durable propylene epoxidation
Propylene oxide (PO) is one of the important propylene derivatives with high reactivity, which is used extensively as a raw material for the manufacture of numerous commercial chemicals. The titanosilicate-catalyzed hydrogen peroxide propylene oxide.....»»
Visualizing cement hydration on a molecular level
The concrete world that surrounds us owes its shape and durability to chemical reactions that start when ordinary Portland cement is mixed with water. Now, MIT scientists have demonstrated a way to watch these reactions under real-world conditions, a.....»»
Scientists demonstrate a better, more eco-friendly method to produce hydrogen peroxide
Hydrogen peroxide (H2O2) is used to disinfect minor cuts at home and for oxidative reactions in industrial manufacturing. Now, the pandemic has further fueled demand for this chemical and its antiseptic properties. While affordable at the grocery sto.....»»
Isolating an elusive missing link
The water oxidation reaction (WOR) is one of the most important reactions on the planet since it is the source of nearly all the atmosphere's oxygen. Understanding its intricacies can hold the key to improve the efficiency of the reaction. Unfortunat.....»»
Hubble captures a wonky galaxy being pulled out of shape
Most galaxies, like our own Milky Way, tend to be symmetrical. However, sometimes a dramatic event can happen to a galaxy and pull it into an asymmetric shape......»»
Twitter Could Be Working On Facebook-Style Reactions
Twitter could be adding some new emojis to augment its formerly star-shaped, currently heart-shaped Like button, according to app researcher Jane Manchun Wong. The Verge reports: The assets Wong found -- which have been reliable predictions of future.....»»
Metamaterials offer multifunctional materials for engineering
In recent years, the popularity of metamaterials has increased significantly. These materials are not found in nature or made using chemical reactions, but are designed geometrically in the physics lab. Metamaterials can be given special, often count.....»»
Can"t stand chewing or breathing sounds? Scientists have discovered why
People who have extreme reactions to sounds such as chewing or loud breathing may have a "supersensitised" brain connection, according to a study......»»
The birth of a subnanometer-sized soccer ball
Ever since the existence of molecules was proven and molecular reactions were predicted, humans have wanted to visually observe how such events proceed. Such observations of single-molecule reactions are highly important for the fundamental understan.....»»
What causes tropospheric ozone pollution over northern Tibetan Plateau?
Atmospheric ozone, which can regulate the amount of incoming ultraviolet radiation on the Earth's surface, is important for the atmospheric environment and ecosystems. Tropospheric ozone, primarily originating from photochemical reactions, is the thi.....»»
Toward overcoming solubility issues in organic chemistry
Scientists from Hokkaido University have developed a rapid, efficient protocol for cross-coupling reactions, vastly expanding the pool of chemicals that can be used for the synthesis of useful organic compounds......»»
Nuclear Reactions at Chernobyl Are Spiking in an Inaccessible Chamber
Scientists monitoring the ruins of the Chernobyl nuclear power plant in Ukraine have seen a surge in fission reactions in an inaccessible chamber within the complex. They are now investigating whether the problem will stabilise or require a dangerous.....»»
Micrometer-size molecular modeling kit shows real chemical reactions
Molecules are so small that we cannot even see them with ordinary microscopes. This makes studying molecules or chemical reactions difficult: researchers are limited to either indirect observations or computer models. A team of researchers from the U.....»»
Awesome, Hypnotic Photos of Swirling, Crystal Chemistry
A new book goes micro to show the wonderful world of close-up chemical reactions......»»
Nuclear Reactions Are Smoldering Again At Chernobyl
An anonymous reader quotes a report from Science Magazine: Thirty-five years after the Chernobyl Nuclear Power Plant in Ukraine exploded in the world's worst nuclear accident, fission reactions are smoldering again in uranium fuel masses buried deep.....»»
Improving quality of life for cats with renal disorders: Drugs with minimal reactions
Many cats develop chronic renal disorders as they age. As chronic renal disorders progress, the secretion of erythropoietin (EPO), a hematopoietic factor produced in the kidneys, is decreased, which causes renal anemia. Veterinary medicine, until now.....»»
No, the new iMac isn"t ugly. The design and colors are a breath of fresh air
When Apple unveiled its colorful new iMac line at a virtual product launch earlier this week, reactions were divided: They're beautiful. They're ugly. What is with that 'chin'?.....»»
Engineering single-molecule fluorescence with asymmetric nano-antennas
NIR fluorescence has shown great potential in bioscience, but low quantum-yield has largely impeded research on most NIR fluorophores. Here, scientists in China use asymmetric plasmonic nano-antennas to drastically enhance an NIR dye's single-molecul.....»»
Scientists uncover structure of light-driven enzyme with potential biofuel applications
Although many organisms capture and respond to sunlight, enzymes—proteins that catalyze biochemical reactions—are rarely driven by light. Scientists have identified only three types of natural photoenzymes so far. The newest one, discovered in 20.....»»