My watch list
my.chemeurope.com  
Login  

15 Current news about the topic photochemical reaction

rss

You can refine your search further. Select from the filter options on the left to narrow down your results.

image description
Productive Cascade

Total synthesis of the sesquiterpene agarozizanol B

12-Oct-2021

Starting from available chemicals, a German team of researchers successfully completed the total synthesis of agarozizanol B, an interesting natural substance found in agarwood. As described in the journal Angewandte Chemie, the key sequence in the relatively short synthetic pathway is a ...

more

image description
Mechanism Deciphered: How Organic Acids Are Formed in the Atmosphere

17-May-2021

The acidity of the atmosphere is increasingly determined by carbon dioxide and organic acids such as formic acid. The second of these contribute to the formation of aerosol particles as a precursor of raindrops and therefore impact the growth of clouds and pH of rainwater. In previous atmospheric ...

more

image description
Particulates are more dangerous than previously thought

Harmful substances are already formed in the atmosphere, not just in the human body

24-Mar-2021

Researchers at the Paul Scherrer Institute PSI have for the first time observed photochemical processes inside the smallest particles in the air. In doing so, they discovered that additional oxygen radicals that can be harmful to human health are formed in these aerosols under everyday ...

more

image description
Flowers of St. John's Wort serve as green catalyst

Conceptually new and sustainable process registered as a German patent

16-Feb-2021

An interdisciplinary team of scientists from the School of Science at TU Dresden has for the first time used dried flowers of St. John's Wort (genus Hypericum) as an active catalyst in various photochemical reactions. This conceptually new and sustainable process was registered as a German patent ...

more

image description
Novel approach to the storage of solar energy

Molecular approach enables light-driven photochemistry in the dark for the first time

21-Sep-2020

Using the energy from the sun as efficiently as nature does and converting it into chemical energy could drastically reduce global CO2 emissions. A research team from the Leibniz Institute of Photonic Technology (Leibniz IPHT) and the Friedrich Schiller University Jena has now come one step ...

more

image description
Snapshot of exploding oxygen

New experimental technique with reaction microscope allows “X-ray” of individual molecules

11-Jun-2020

For more than 200 years, we have been using X-rays to look inside matter, and progressing to ever smaller structures – from crystals to nanoparticles. Now, within the framework of a larger international collaboration on the X-ray laser European XFEL in Schenefeld near Hamburg, physicists at ...

more

image description
What happens when you explode a chemical bond?

Attosecond laser technique yields movies of chemical bond dissociation

15-Jul-2019

On bright summer days, the sunlight all around us is breaking bad by breaking bonds. Chemical bonds. Ultraviolet light shatters the links between atoms in the DNA of our skin cells, potentially causing cancer. UV light also breaks oxygen bonds, eventually creating ozone, and cleaves hydrogen off ...

more

image description
Photochemical deracemization of chiral compounds achieved

The vanished mirror image

20-Dec-2018

Enantiomeric molecules resemble each other like right and left hands. Both variants normally arise in chemical reactions. But frequently only one of the two forms is effectual in biology and medicine. Hitherto, completely converting this mixture into the desired enantiomer was deemed impossible. ...

more

image description
'Molecular movie' captures chemical reaction on atomic scale

09-Jul-2018

A team of physicists from the University of Nebraska-Lincoln, Stanford University and Europe has captured the clearest glimpse yet of a photochemical reaction - the type of light-fueled molecular transformations responsible for photosynthesis, vision and the ozone layer. The researchers precisely ...

more

image description
Researchers tackle long-standing problem of few-femtosecond internal conversion

23-Oct-2017

Observing the crucial first few femtoseconds of photochemical reactions requires tools typically not available in the femtochemistry toolkit. Such dynamics are now within reach with the instruments provided by attosecond science. In the study by Galbraith et al., published in Nature ...

more

Page 1 From 2
Subscribe to e-mail updates relating to your search

You will receive via e-mail the latest search results matching your search criteria. This service is free of charge and can be cancelled at any time.

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE