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Figure 1
The idealized model of Schwarzenbach (1969 ). Left: the four-layer stacking (I41/amd). Right: the two-layer stacking (P42/nmc). I and Hg atoms are, respectively, at the corners and centers of the tetrahedra. The site symmetry of the supertetrahedra is . See also Fig. 5![]() |


journal menu![[Figure 1]](bk0119fig1.jpg)

. See also Fig. 5


