Sentences with phrase «new hydrogen bonds»

This fact, along with the computer simulation, suggests that the mechanical force provided by actin can restructure CPEB into a longer fiber with new hydrogen bonds between the coils.

When ethanol dissolves in water, the ethanol molecules remain intact but form new hydrogen bonds with the water.

It turned out that the negative compressibility of sodium amidoborane crystals has to be a consequence of the elongation of the chemical bonds between nitrogen and hydrogen and boron and nitrogen, caused by the abrupt formation of new hydrogen bonds between adjacent molecules in the crystal.

Not exact matches

Individually they are weak, together they form the cement that holds together a whole new family of designer materials sings the praises of hydrogen bonds

Scientists from Tomsk Polytechnic University together with their colleagues from USA and Japan have proposed a novel way to address the most important and fundamental challenge of organic chemistry, i.e. breaking a bond between carbon and hydrogen atoms to form new organic substances.

In order to obtain new compounds, it is necessary to break the bond of carbon and hydrogen to form carbon - carbon bond,» explains the researcher.

But chemists at the University of Copenhagen have discovered a new kind of hydrogen bond that, at first glance, should be impossible: It's composed of two positively charged atoms, one phosphorus and one hydrogen.

These elements helped to carry out CH - activation, i.e. to break the bond between carbon and hydrogen in molecules and to create a new carbon - carbon bond and thereby obtain new promising substances.

While the strong sigma or covalent bonds were explained by the new theories of quantum mechanics, hydrogen bonds were seen as nothing more than an electrostatic attraction between charged particles and were explained according the principles of classical physics.

On page 761 of this issue, Banik et al. (4) describe an inventive catalytic approach that combines hydrogen - bond donors and Lewis acids to generate enhanced catalytic species able to effect new types of enantioselective reactions.

The new experimental technique may also help other researchers plumb the properties of materials lacking hydrogen bonds, such as superconductors and semiconductors, where they hope to manipulate the quantum mechanical behavior of advanced materials.

In a new paper published in Physical Review Letters, a team from Carnegie's Geophysical Laboratory examined the structure, bonding and electronic properties of highly compressed hydrogen using intense infrared radiation.

«The Ru catalyst precisely distinguishes butadiene and substituted acetylene molecules and new carbon - carbon bonds are formed among a butadiene with two acetylenes just by migration of the terminal hydrogen atoms in butadiene.

Among the areas of research that inspire Dr. Cui are: the development of new technologies to further the development of electric transportation; creating new battery chemistry for grid - scale storage at ultra-low cost; and harnessing low - cost technologies for the development of catalysts for efficient carbon dioxide reduction and conversion into highly valuable products and inert carbon - hydrogen bond activation.

«Melanie Sanford's insightful studies on the details as well as applications in the field of carbon - hydrogen bond activation have led to new methods to efficiently modify existing pharmaceuticals to arrive at new and better forms in a more efficient and rapid way than was previously possible.

Thus, we designed and synthesized new molecular architectures based on the 3D Janus tecton concept, suitable for self - assembly on surface by supramolecular interactions such as coordination, halogen bond or hydrogen bond.3 Here we present two different model pyridyl end - capped molecules: the pedestal P1, and the naked pillar NP pedestal incorporating a cyclophane core.

To solve the mystery, Wiedner and Bullock used newer techniques to show how the actors form bonds, trade electrons, and free hydrogen.