A beryl channel resembles a hexagonal tube, and the team reckons that a V-shaped water molecule (two hydrogen atoms attached to an oxygen vertex) will sit with its oxygen atom in the centre of the tube and its two hydrogen atoms pointing above and below the hexagonal plane (see image)....
The phase transitions of water are essential in the EI- and MI-HENGs. A water molecule is formed by one oxygen atom and two hydrogen atoms. The hydrogen atoms are positively charged due to the electron transfer to the oxygen atom, resulting in a polarized water molecule [38], [39]. The...
When water molecules align with each other, a weak bond is established between the negatively charged oxygen atom of one water molecule and the positively charged hydrogen atoms of a neighboring water molecule. The weak bond that often forms between hydrogen atoms and neighboring atoms is thehydrog...
Yves MaréchalThe Hydrogen Bond and the Water Molecule
When two hydrogen atoms meet, they have to make a hydrogen molecule. But sometimes they don't because the temperature and pressure conditions are not correct. Dancing with the stars: with 10,000 billion billion heavenly bodies in the cosmic ballroom, God has created a grand universe of possibi...
Serine-based β-lactamases of Class A, C and D all rely on a key water molecule to hydrolyze and inactivate β-lactam antibiotics. This process involves two conserved catalytic steps. In the first acylation step, the β-lactam antibiotic forms an acyl-en
In aqueous mediums, the chemical environment for catalytic reactions is not only comprised of water molecules but also of corresponding ionized species, i.e., hydronium ions, which can impact the mechanism and kinetics of a reaction. Here we show that in aqueous-phase hydrogenation of furfural ...
Hydrogen bonding is a central concept in chemistry and biochemistry, and so it continues to attract intense study. Here, we examine hydrogen bonding in the H2S dimer, in comparison with the well-studied water dimer, in unprecedented detail. We record a m
Each water molecule forms mobile hydrogen bonds with the 18-crown-6 molecule; i.e., the O atom of the water molecule is localized above the ligand cavity, whereas the two H atoms were found to coordinate nonlocally to two of the three O atoms lying on each side of the ligand. In ...
As can be seen from the density profile of oxygen atoms in the water molecules (Figs. 3a and S1, S2), we find that starting from Apore = 0.31 nm2, the pore is open for the lateral motion of water molecules in the pore, so the nature of single-file transport through the ...