Raman OH stretching vibration of ice Ih

From our recent research on ice I-h ( hexagonal ice), we deduce that free OH groups exist at the ice surface and that dangling OH influences the interior of the proton-disordered ice. Additionally, exploiting recent research by others on water molecular clusters, we propose a new interpretation for the Raman OH stretching vibration of ice I-h. We deconvolute the Raman OH stretching vibration of ice I-h into four sub-bands, with each sub-band being ascribed to OH vibrations engaged in different types of hydrogen bonding. (C) 2009 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved.