Latest chemical bond Stories

Making Contact Between Metal And Carbon Compounds
2013-02-18 07:59:56

Helmholtz Association of German Research Centres Until now, however, it was practically impossible to accurately predict which molecules performed well on the job. They basically had to be identified by trial-and-error. Now, an international team of scientists around Dr. Georg Heimel and Prof. Norbert Koch from the HZB and the Humboldt University Berlin has unraveled the mystery of what these molecules have in common. Their discovery enables more focused improvements to contact layers...

Researchers Reconfirm Original Tetrahedral Model Of Water Molecules
2013-02-13 04:45:42

Lee Rannals for redOrbit.com - Your Universe Online For all those who worried back in 2004 that the sky was falling because the original model of the molecular structure of water toppled out, have no fear, because things can go back to the way they used to be. Johannes Gutenberg University Mainz (JGU) researchers confirmed the original tetrahedral model, after an international research group challenged the model nine-years ago, claiming that water molecules form bonds only with two...

2012-12-18 14:17:14

The compound can be toggled back and forth between its aromatic and anti-aromatic states, as well as to a never before seen intermediate state By synthesizing a stable "antiaromatic" compound, as well as a never before seen intermediate version of that compound, chemists at The University of Texas at Austin have written an important new chapter in the story of modern chemistry. The research was done in collaboration with an international roster of colleagues from Yonsei University in...

Chemical Processes Controlled With Ultra-short Laser Pulses
2012-12-12 16:29:32

Technische Universität Wien How can molecules be split in a controlled manner? A new experiment at the TU Vienna shows how research into ultra-short laser pulses can be combined with chemistry. Chemical reactions occur so quickly that it is completely impossible to observe their progress or to control them using conventional methods. However, new developments in electrical engineering and quantum technology enable us to achieve a more exact understanding and improved...

No Assembly Required - Microparticles That Self-assemble
2012-10-31 15:46:47

Harvard University Scientists have created new kinds of particles, 1/100th the diameter of a human hair, that spontaneously assemble themselves into structures resembling molecules made from atoms. These new particles come together, or "self-assemble," to form structures in patterns that were previously impossible to make and hold promise for manufacturing advanced optical materials and ceramics. The method, described in the latest issue of the journal Nature, was developed by a team of...

Electrons Frozen In Flight
2012-10-16 13:36:17

Using the world´s fastest laser pulses, which can freeze the ultrafast motion of electrons and atoms, UA physicists have caught the action of molecules breaking apart and electrons getting knocked out of atoms. Their research helps us better understand molecular processes and ultimately be able to control them in many possible applications. In 1878, a now iconic series of photographs instantly solved a long-standing mystery: Does a galloping horse touch the ground at all times? (It...

Physicists Make Perpetual Clock With 4 Dimensional Crystals
2012-09-25 11:27:44

Alan McStravick for redOrbit.com - Your Universe Online Theoretical Physics made a huge leap from concept to reality yesterday thanks to collaboration between an international team of scientists and researchers with the U.S. Department of Energy´s (DOE) Lawrence Berkeley National Laboratory (Berkeley Lab). The team has proposed the experimental design of a space-time crystal that is based on an electric-field ion trap and the Coulomb repulsion of particles that carry...

2012-09-19 15:19:49

A new model provides an alternative description of atomic level gold bonding A study on how gold atoms bond to other atoms using a model that takes into account bonds direction has been carried out by physicist Marie Backman from the University of Helsinki, Finland, and colleagues. These findings, which are about to be published in EPJ B, are a first step toward better understanding how gold binds to other materials through strong, so-called covalent, bonds. What scientists need is an...

Molecular Bond Issue Forced
2012-09-06 09:18:06

New and Improved Model of Molecular Bonding from Researchers at Berkeley Lab´s Molecular Foundry Material properties and interactions are largely determined by the binding and unbinding of their constituent molecules, but the standard model used to interpret data on the formation and rupturing of molecular bonds suffers from inconsistencies. A collaboration of researchers led by a scientist at the U.S Department of Energy (DOE)´s Lawrence Berkeley National Laboratory (Berkeley...

2012-06-27 22:44:24

The powerful new technique should appeal to chemists at pharmaceutical companies and research institutions Scientists at The Scripps Research Institute have developed a powerful new technique for manipulating the building-block molecules of organic chemistry. The technique enables chemists to add new functional molecules to previously hard-to-reach positions on existing compounds–making it easier for them to generate new drugs and other organic chemicals. "This is a basic tool for...

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