Researchers at Linköping University used computer simulations to show that stable aromatic molecules can become reactive after absorbing light. This could enable new ways to control photochemical reactions using the aromaticity of molecules.
Researchers observed a novel type of excitation, called a polaron, where collective oscillations of the electron and its screening cloud arise at terahertz frequencies. These oscillations persist for tens of picoseconds and are impulsively triggered by ultrafast electron localization.
Researchers at UC Riverside discover that adding iodide to a water treatment reactor using ultraviolet (UV) light and sulfite can destroy up to 90% of PFAS chemicals in just a few hours. This method accelerates the reaction four times, saving energy and chemicals, and enables the treatment of ten times higher concentrations of PFAS.
Researchers have provided direct insight into the electronic structure of a proton donating group in an amine aromatic photoacid using ultrafast X-ray spectroscopy. The study reveals major electronic structure changes occur on the base side of the Förster cycle, resolving the long-standing open question.
Researchers at Tokyo University of Science have developed a novel light-based method for rapidly racemizing chiral sulfoxides, a crucial step in producing desired enantiomers. This breakthrough utilizes photocatalysts to achieve rapid racemization under moderate conditions, bypassing the need for high temperatures previously required.
A German team led by Thorsten Bach successfully synthesized agarozizanol B, a complex sesquiterpene with potential pharmaceutical applications. The researchers developed a photochemical reaction cascade to form the molecule from an indanone derivative, achieving both enantiomers of the natural product.
Researchers discuss direct conversion of N2 into organic compounds via N-C bond formation, with potential applications in sustainable systems. The review highlights the challenges and limitations of current methods, but also outlines promising future research directions.
Scientists at Chiba University have discovered a previously overlooked electronic transition 'S0 → Tn' in heavy-atom-containing molecules exposed to visible light. The study reveals that this mechanism promotes radical reactions in photoreactions with visible light, which was not previously considered a main role.
A team of chemists at the University of Münster has developed a strategy for generating random hits in a systematic way, discovering new reactions and gaining deeper understanding of molecular processes. The study identified three previously unknown reactions, including a photochemical cycloaddition.
A team of physicists has captured the behavior of a five-atom molecule's atomic nuclei and chemical bonds in response to a laser, revealing the clearest glimpse yet of a photochemical reaction. The study marks a significant advancement in understanding these light-fueled molecular transformations.
A team of scientists from Arizona State University has re-thought the evolutionary history of photochemical reaction centers (RCs). They propose a new pathway that ancient organisms may have taken to evolve the great variety of photosynthetic RCs seen today.
Researchers at the University of Tokyo have developed a new microscope that can observe magnetic sensitivity in photochemical reactions within sub-cellular structures. The microscope, called TOAD imaging, allows for the detection of radical pairs formed from flavin adenine dinucleotide (FAD) and their response to weak magnetic fields.
Researchers developed a new technique to study photochemical reactions, allowing for simultaneous monitoring of electronic and molecular dynamics. This breakthrough could answer questions about photochemical and photobiological systems, enabling the development of more efficient solar energy systems and nanomaterials.
Scientists at Technical University of Munich have discovered a way to create natural substances using photoreactions and a special catalyst, reducing the formation of unwanted mirror-image variants. This method has potential for industrial applications in drug development and plant protection.
Researchers at the University of Hawaii created a photochemical reactor built into a surfboard to perform green reactions with sunlight and sea water. The system efficiently dissipates excess thermal energy using ocean currents, enabling scalable production of vitamin A variants.
Roger Atkinson, a leading atmospheric chemist, has been elected Fellow of the American Geophysical Union. His pioneering research on atmospheric reactions and photochemical smog has received recognition from various quarters. He has contributed to the development of analytical and experimental methods for researchers.