Science, Space and Technology News 2024
A team of researchers from ICFO developed a tool based on attosecond core-level spectroscopy to study molecular dynamics in real-time, focusing on gas-phase furan. They successfully tracked its ring-opening dynamics, and conical intersections, and observed quantum superpositions and dark states. Credit: SciTechDaily
The challenge in studying these dynamics stems from the difficulty of tracing the nuclear and electronic motion simultaneously. Their dynamics are intertwined and occur on ultrafast timescales, which has made capturing the molecular dynamical evolution in real time a major challenge for both physicists and chemists in recent years.
In their experiment, a light beam first excited the furan molecule. Then, an attosecond and a much weaker pulse were used to monitor the pump-induced changes in the sample. After the initial photoexcitation, the three expected conical intersections were located in time by analyzing the changes in the absorption spectrum as a function of the delay between the pump and probe.
Finally, the molecule relaxed into the ground state through the third conical intersection, whose transition was again accurately time-resolved.Biegert and his group have proposed and successfully demonstrated a new analytical methodology to unveil the complex process of molecular ring-opening in its native ultrafast timescale.
Indonesia Berita Terbaru, Indonesia Berita utama
Similar News:Anda juga dapat membaca berita serupa dengan ini yang kami kumpulkan dari sumber berita lain.
Apple’s New iPhone Feature Reduces Car Sickness With Animated DotsVehicle Motion Cues will show moving dots on iPhones and iPads to help reduce motion sickness
Baca lebih lajut »
Exploration of polymer cononsolvency mechanism through soft X-ray absorption spectroscopyA study, published in Physical Chemistry Chemical Physics, investigated the cononsolvency mechanism of poly(N-isopropylacrylamide) (PNIPAM), which is soluble in pure methanol (MeOH) and water but insoluble in aqueous MeOH solutions.
Baca lebih lajut »
Designing Safer, Higher-Performance Lithium Batteries With Nuclear Magnetic Resonance SpectroscopyScience, Space and Technology News 2024
Baca lebih lajut »
Pushing an information engine to its limitsThe molecules that make up the matter around us are in constant motion. What if we could harness that energy and put it to use? Over 150 years ago Maxwell theorized that if molecules' motion could be measured accurately, this information could be used to power an engine.
Baca lebih lajut »
Seeing the color of entangled photons in molecular systemsSpectroscopy is the study of how matter absorbs and emits light and other radiation. It allows scientists to study the structure of atoms and molecules, including the energy levels of their electrons. Classical optical spectroscopy relies on the way particles of light called photons interact with matter.
Baca lebih lajut »
A Revolutionary Approach to Flu Prevention: New Molecules Stop Infection Before It StartsScience, Space and Technology News 2024
Baca lebih lajut »