Articles tagged with Hydrogen Bonding
Researchers use fully quantum-mechanical simulations to study proton diffusion in acids, finding that the proton migrates by interconverting hydrogen bonds into strong covalent bonds. Quantum tunneling is not involved, and the defect's delocalization is induced by zero-point motion of excess protons.
A US-France-Canada physics collaboration has confirmed that hydrogen bonds in water partially get their identity from covalent bonds within the H2O molecule. This property is a manifestation of quantum mechanics' effects, enabling researchers to improve predictions and advance areas like nanotechnology and superconductors.
Researchers at the University of Illinois have discovered that tumbling atoms play a crucial role in hydrogen re-forming reactions. The study reveals that hydrogens exchange sites with each other, leading to the formation of new bonds between carbon and metal centers.
A team of scientists uncovered how protons move and share in hydrogen bonds under extreme pressure, shedding light on biological processes like enzyme catalysis. This discovery could lead to advancements in materials science and chemistry.
Chemists directly observed how hydrogen atoms behave and bond to surfaces at high temperatures using a scanning tunneling microscope. They found that dangling bonds on the surface unpaired, re-paired multiple times depending on temperature, showing favorable conditions for growing more silicon.
Researchers found that growing strands of DNA can accurately incorporate a nucleotide that closely resembles thymine but lacks hydrogen bonding ability. This finding suggests that the distinctive shapes and sizes of DNA bases may underpin the impressive 99.99-percent accuracy of DNA replication.
Researchers have discovered that tiny clusters of eight water molecules naturally arrange themselves into small cubic structures, revealing unique properties of water. The study found that even in very small water clusters, water has the capacity to arrange its hydrogen bonds in several distinct orientations.