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.....»»
Fine-structure sensitive deep learning framework for prediction of catalytic properties with high precision
The fine structure of the catalytic surface has a significant impact on structural sensitive reactions, and high-throughput (HT) screening and machine learning (ML) are believed to effectively explore the potential rules of these effects and accelera.....»»
Scientists synthesize new organometallic "sandwich" compound capable of holding more electrons
Organometallic compounds, molecules made up of metal atoms and organic molecules, are often used to accelerate chemical reactions and have played a significant role in advancing the field of chemistry......»»
Striking gold with molecular mystery solution for potential clean energy
Hydrogen spillover is exactly what it sounds like. Small metal nanoparticles anchored on a thermally stable oxide, like silica, comprise a major class of catalysts, which are substances used to accelerate chemical reactions without being consumed the.....»»
Semiconductor photocatalyst helps to realize borylation reaction
A research group led by Prof. Dai Wen from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS) has realized borylation reactions involving N-heterocyclic carbene boranes (NHC-BH3) with a simple and efficient heter.....»»
Scientists use quantum device to slow down simulated chemical reaction 100 billion times
Scientists at the University of Sydney have, for the first time, used a quantum computer to engineer and directly observe a process critical in chemical reactions by slowing it down by a factor of 100 billion times......»»
Novel strategy to accelerate design of high-performance lithium metal batteries
Lithium metal batteries (LMBs) have attracted much attention for their potential in electronics and electric vehicle applications. However, issues such as the growth of Li dendrites and undesirable side reactions with electrolytes during electrochemi.....»»
How to Switch to Navigation Buttons or Gestures on Android
Our recent discussion about Android’s gesture navigation, which is now several years old, prompted quite the set of reactions. It’s clear that not everyone is a fan of gestures and plenty still prefer the 3-button layout that Android stil.....»»
Researchers design efficient iridium catalyst for hydrogen generation
The energy demands of the world are ever increasing. In our quest for clean and eco-friendly energy solutions, transportable hydrogen energy offers considerable promise. In this regard, proton exchange membrane water electrolyzers (PEMWEs) that conve.....»»
Theoretical and experimental physics team up in the search for particle flavor change
An important recent discovery in physics came from measuring neutrinos—neutral, weakly interacting particles—produced by the sun. Nuclear reactions in the sun produce only electron neutrinos. According to the standard model, neutrinos come in thr.....»»
Study demonstrates many-body chemical reactions in a quantum degenerate gas
In recent years, physicists have been trying to attain the control of chemical reactions in the quantum degenerate regime, where de Broglie wavelength of particles becomes comparable to the spacing between them. Theoretical predictions suggest that m.....»»
Researchers visualize novel catalyst at work
A novel catalysis scheme enables chemical reactions that were previously virtually impossible. A method developed at the University of Bonn is also environmentally friendly and does not require rare and precious metals......»»
Researchers create high-performance aluminum matrix composites with asymmetric cryocooling
Our ongoing endeavor to venture into outer space demands substantial technological advances across various fields, including materials science. Materials used in the aerospace industry must be lightweight yet mechanically resistant, a combination tha.....»»
Scientists observe first evidence of "quantum superchemistry" in the laboratory
A team from the University of Chicago has announced the first evidence for "quantum superchemistry"—a phenomenon where particles in the same quantum state undergo collective accelerated reactions. The effect had been predicted, but never observed i.....»»
Exploring an eco-friendly enzyme to create key chemical building blocks
Using energy from light to activate natural enzymes can help scientists create new-to-nature enzymatic reactions that support eco-friendly biomanufacturing—the production of fuels, plastics, and valuable chemicals from plants or other biological sy.....»»
How to set up Center Stage in macOS Sonoma
Right alongside new video conferencing features like reactions, macOS Sonoma gives you Center Stage options to control how you present yourself to the world — if you have the right camera.Center Stage on the Mac is exactly as it has been on the iPa.....»»
How people judge anti-vaxxers who die from COVID-19
When people who publicly reject COVID-19 vaccines later die from the disease, observers have complex reactions to their fates, a new study suggests......»»
Sony’s Xperia 5 V Leaks Online
It looks like the Xperia 5 V will come with some new design changes. Sony’s unveiling of this year’s Xperia 1 V and 10 V handsets has yielded some interesting reactions and reception from the internet, and it looks like the comp.....»»
New study expands the scope of aza-Friedel–Crafts reactions
From life-saving drugs and synthetic polymers to diverse advanced materials, the products containing organic compounds seem endless, thanks in part to regioselectivity, a feature in chemical reactions where a substituent is selectively added to a spe.....»»
Researchers explore new methods for optimizing carbon-based catalysts
Carbon-based materials have several qualities that make them attractive as catalysts for speeding up chemical reactions. They are low-cost, lightweight and their high surface area provides a good scaffold on which to anchor catalysts, keeping them st.....»»
Scientists develop revolutionary new approach to designing catalysts for chemical reactions
Chemists at King's College London have made a breakthrough in the way they develop artificial helix shapes for the amino acids that constitute proteins. These new synthetic shapes have the potential to transform processes such as chemical reactions t.....»»