Theoretical chemists like Dr. £ukasz Tomasz Rajchel (University of Warsaw) are familiar with that. However, they – or rather their computers – are not capable of calculating them with high accuracy and efficiency at the same time.
The scholarship holder of the Alexander von Humboldt Foundation wants to get to the bottom of the computational problem while working in Prof. Dr. Georg Jansen’s Theoretical Organic Chemistry team at the University Duisburg-Essen (UDE).
Since intermolecular forces are very small, the computational technique must be very precise. Furthermore, getting significant results by experiment is difficult. For solving the task £ukasz Rajchel refers to various approximations of quantum chemistry. ‘They form my theoretical basis and shall help me develop new approaches for calculating intermolecular energies.’ The 30 year old chemist solves the underlying equations with the help of self-developed computer codes.
The more £ukasz Rajchel and his colleagues get to know about the interactions between chemical compounds, the better they can understand matter and predict its characteristics. The significance of those tiny forces cannot be stressed enough. ‘They are substantial in nature’, says Dr. Rajchel. For example: they are responsible for DNA and RNA’s stability in genetic information or for the existence of molecular crystals and the proteins’ structure. Interestingly, they also let the gecko walk on vertical glass surfaces.Clue for picture editors:
Beate Kostka | idw
Molecular motors run in unison in a metal-organic framework
20.03.2019 | University of Groningen
Active substance from plant slows down aggressive eye cancer
20.03.2019 | Rheinische Friedrich-Wilhelms-Universität Bonn
Due to the special arrangement of its molecules, a new coating made of corn starch is able to repair small scratches by itself through heat: The cross-linking via ring-shaped molecules makes the material mobile, so that it compensates for the scratches and these disappear again.
Superficial micro-scratches on the car body or on other high-gloss surfaces are harmless, but annoying. Especially in the luxury segment such surfaces are...
The Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the Large Binocular Telescope (LBT) in Arizona released its first image of the surface magnetic field of another star. In a paper in the European journal Astronomy & Astrophysics, the PEPSI team presents a Zeeman- Doppler-Image of the surface of the magnetically active star II Pegasi.
A special technique allows astronomers to resolve the surfaces of faraway stars. Those are otherwise only seen as point sources, even in the largest telescopes...
Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.
"This source of radiation lets us look at reality through a new angle - it is like twisting a mirror and discovering something completely different," says...
New research group at the University of Jena combines theory and experiment to demonstrate for the first time certain physical processes in a quantum vacuum
For most people, a vacuum is an empty space. Quantum physics, on the other hand, assumes that even in this lowest-energy state, particles and antiparticles...
Physicists in the EPic Lab at University of Sussex make crucial development in global race to develop a portable atomic clock
Scientists in the Emergent Photonics Lab (EPic Lab) at the University of Sussex have made a breakthrough to a crucial element of an atomic clock - devices...
11.03.2019 | Event News
01.03.2019 | Event News
28.02.2019 | Event News
20.03.2019 | Life Sciences
20.03.2019 | Life Sciences
20.03.2019 | Trade Fair News