The structure of hydrogen bonds in ice is considered theoretically taking into account the quantum tunneling of protons along the bonds and the Coulomb interaction of protons of different bonds. It is shown that the width and height of the potential barrier become very small at sufficiently small ...
Interestingly, the squishing of the clusters leads to slight twisting of the hydrogen bonds leading from the waist to the apex molecules which seems a meaningful mechanical response to the squishing distortion. Overall, the distortions break the tetragonal P42/nmc symmetry of ice VI to the ...
Here we analyse inelastic neutron-scattering spectra for the ice I solid phase of water, which provide evidence for the existence of two different kinds of hydrogen-bond, of different strengths, in the solid. A model in which strong and weak hydrogen-bonds in the ratio of about 2:1 are ...
We study the previously reported 5 + 7 defect in the structure of hydrogen bonds in water ice Ih. This defect appears in simulations with TIP4P water models, and it has not been clear whether it is an artifact of the model. We found that the TIP4P/2005 and TIP4P/ice models predict the...
Experimental/ hydrogen bondsiceliquid structuremolecular configurationsneutron diffractionwater/ structural characteristicsH-bonded networkswatericemolecular configurationsThe molecular configurations of water molecules in the disordered condensed state are investigated by neutron diffraction. The results provide evidence...
Therefore, all hydrogen bonds are saturated and their structures are very stable39. 2D ice formation mechanism without nanoscale confinement is that appropriate water-surface interactions can compensate for the entropy loss in the freezing transition process41. The supercooled unfrozen droplets are ...
The surface is terminated as a full-bilayer that maximizes the number of surface hydrogen bonds as confirmed by our total-energy calculations. Both LEED and MD simulations End that the outermost water molecules have enhanced vibrational amplitudes making them practically undetectable by LEED even at ...
When water freezes and becomes solid ice, the hydrogen bonds create a crystal structure and there is fixed space between each water molecule. This causes ice to a. become more dense than liquid water Which of the following processes have Delta S less than 0? a. d...
The existence of bifurcated hydrogen bonds (BHB) between three molecules as a major feature of the structure of liquid water was postulated recently to account for the remarkable effect of temperature on the O–H stretching bands in the Raman spectra. As a corollary, there should be two kinds...
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