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Figure 2 View along the a axis (with b horizontal and c vertical) showing the three unique intermolecular contacts (as dashed-line tubes) that are less than the sums of the v.d. Waals' radii of the interacting atoms. (Symcodes: i, 1-x,-1/2+y,1/2-z; ii, 1-x,1/2+y,1/2-z; iii, −x,1-y,-z; iv, 1-x,-y,-z.) |