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34 Current news of Universität Wienrss
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New strategy to separate molecules
In our daily lives, the purpose and function of an item is defined by either its material, e.g. a rain jacket is fabricated of water-proof material, or its shape, e.g. a wheel is round to enable a rolling motion. What is the impact of the two factors on the nanoscale? The impact of material, ...
Physicists develop new method
When a particle is completely isolated from its environment, the laws of quantum physics start to play a crucial role. One important requirement to see quantum effects is to remove all thermal energy from the particle motion, i.e. to cool it as close as possible to absolute zero temperature. ...
A method to replace hydrogen with fluorine in organic molecules makes drugs more effective
The development and improvement of pharmaceuticals plays the central role in the ongoing battle against human disease. Organic synthesis is the field that enables these developments as it offers the toolbox to diversify chemical structures. The group of Nuno Maulide, recently named the Scientist ...
Why is water densest at around 4 degrees Celsius? Why does ice float? Why does heavy water have a different melting point compared to normal water? Why do snowflakes have a six-fold symmetry? A collaborative study of researchers from the École Polytechnique Fédérale de Lausanne, the University of ...
Chemists develop new anode material
Conventional lithium ion batteries, such as those widely used in smartphones and notebooks, have reached performance limits. Materials chemist Freddy Kleitz from the Faculty of Chemistry of the University of Vienna and international scientists have developed a new nanostructured anode material ...
A new chapter in ribonucleic acid synthesis
Ribonucleic acid (RNA) is, along with DNA and protein, one of the three primary biological macromolecules and was probably the first to arise in early life forms. In the “RNA world” hypothesis, RNA is able to support life on its own because it can both store information and catalyze biochemical ...
Chemists finally find a surprisingly simple reaction to make a family of bioactive molecules
Many natural products and drugs feature a so-called dicarbonyl motif – in certain cases however their preparation poses a challange to organic chemists. In their most recent work, Nuno Maulide and his coworkers from the University of Vienna present a new route for these molecules. They use ...
Researchers succeed in controlling multiple quantum interactions in a realistic material
Materials with controllable quantum mechanical properties are of great importance for the electronics and quantum computers of the future. However, finding or designing realistic materials that actually have these effects is a big challenge. Now, an international theory and computational team led ...
Neural networks carry out chemical simulations in record time
Researchers at the Universities of Vienna and Göttingen have succeeded in developing a method for predicting molecular infrared spectra based on artificial intelligence. These chemical "fingerprints" could only be simulated by common prediction techniques for small molecules in high quality. With ...
First explicit bounds from interference experiments with matter waves
In quantum mechanics particles can behave as waves and take many paths through an experiment, even when a classical marble could only take one of them at any time. However, it requires only combinations of pairs of paths, rather than three or more, to determine the probability for a particle to ...