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Figure 10
Electron-density plot showing the (3+1)D modulation of the O6 and O7 atoms along x1 as a function of x4, with the electron density summed over a thickness of 1 Å in the remaining directions. Solid and dashed black lines represent areas of positive and negative electron density. The curves of the red and blue lines represent the paths of motion of the O6 and O7 atoms. This occupational modulation is manifested as positional disorder where the water molecule is split over the O6 and O7 sites, which have an average occupancy ratio of 62.4 (3):37.6 (3) in I·2H2O(mod). |