Spatial structure in low-temperature amorphous phases of water

The spatial (local) structure in liquid water at ambient conditions has been recently determined in computer simulation and neutron diffraction studies using the spatial distribution functions between atoms. The spatial distribution functions of oxygen atoms are analyzed for the low-temperature amorphous phases of water obtained in MD simulations with the TIP4P potential. These structural data reveal the important role played by the nontetrahedral, interstitial coordination of H2O molecules in phase transitions of low-temperature water.