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 ...
J. Li, D. Ross, Evidence for two kinds of hydrogen bond in ice, Nature 365 (1993) 327-329.Li JC, Ross DK. Evidence for two kinds of hydrogen bond in ice. Nature. 1993;365:327- 329.J. C. Li and D. K. Ross. Evidence for two kinds of hydrogen bond in ice. Na- ture(...
We combine photoelectron and x-ray absorption spectroscopy with density functional theory to derive a molecular orbital picture of the hydrogen bond in ice. We find that the hydrogen bond involves donation and back-donation of charge between the oxygen lone pair and the O–H antibonding orbitals ...
Repulsive force between the O-H bonding electrons and the O:H nonbonding pair within hydrogen bond (O-H:O) is an often overlooked interaction which dictates the extraordinary recoverability and sensitivity of water and ice. Here, we present a potential model for this hidden force opposing ice ...
Summary This chapter contains sections titled: Introduction: Hydrogen-Bond Connectivity and Physical Properties Hydrogen-Bond Order-Disorder Transitions in Ice Analysis of the Hydrogen-Bond Order-Disorder in Ice Enumeration of Hydrogen-Bond Configurations Water Clusters Defects Conclusion Acknowledgments Reference...
Covalency of the Hydrogen Bond in Ice: A Direct X-Ray Measurement Periodic intensity variations in the measured Compton profile anisotropies of ordinary ice Ih correspond to distances of 1.72 and 2.85 , which are close to... E.,D.,Isaacs,... - 《Physical Review Letters》 被引量: 444发表...
In other words, the presence of hydrogen bonds enables ice to float, because this spacing causes ice to be less dense than liquid water.Were the bond strengths more equivalent, one might instead find the atoms of two interacting water molecules partitioned into two polyatomic ions of opposite ...
Regelation, i.e., ice melts under compression and freezes again when the pressure is relieved, remains puzzling since its discovery in 1850's by Faraday. Here we show that hydrogen bond (O:H-O) cooperativity and its extraordinary recoverability resolve this anomaly. The H-O bond and the O...
hydrogen bonding does not reduce to electrostatic attraction between polar groups A—H and B but is considered as a donor-acceptor chemical bond. In respect to its binding energy, usually 3-8 kilocalories per mole, the hydrogen bond is intermediate between van der Waals interactions (equal to ...
water/ H bond networkamorphous icevitreous iceThe structural characteristics of hydrogen bonding in water and ices can be studied by neutron diffraction. This short review concerns recent work on temperature variation and isotopic substitution measurements for the normal and supercooled liquid phase with ...