Hydrogen repulsion "transition" in Co(OD)(2) at high pressure?

Neutron powder diffraction studies of beta-Co(OD)(2) to 16 GPa show that th e structural changes with pressure are continuous and reveal no evidence fo r the amorphization of the hydrogen sublattice at 11 GPa previously propose d on the basis of light-scattering and x-ray diffraction studies [Nyugen et al., Phys. Rev. Lett. 78, 1936 (1997)]. Instead, the changes in the deuter ium packing with pressure suggest that the observed anomalies in Raman and infrared data at 11 GPa are the result of structural frustration due to H . .. H repulsion.