Structure of high-density amorphous water. II. Neutron scattering study

Abstract

High‐density amorphous water is studied by neutron scattering in a Q range extending to 16 Å⁻¹. The low density form of amorphous water is also analyzed and compared with previous results. There are very important differences in the composite pair correlation functions of the two forms of amorphous ice, in particular beyond the first nearest‐neighbors distance. We conclude that the hydrogen bond network is strongly deformed in a manner analogous to that found in water at high temperature. This is in contrast with the behavior of the pair correlation function of low‐density amorphous water, which is closer to that of supercooled water.