Fig. 4From: Significance of the high-pressure properties and structural evolution of gas hydrates for inferring the interior of icy bodiesAn overview of the structural evolution of (top) MH and (bottom) HH after transition to the filled-ice structure, except for HH-C0. With increasing pressure, the guests undergo stepwise orientational ordering accompanied by structural changes. Hydrogen-bond symmetrization of the host was predicted to occurs at even higher pressures (further changing the structure), although this has not yet been fully verified experimentallyBack to article page