Figure 9.2.2.1

Ďurovič, S.

doi:10.1107/97809553602060000618

International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

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International Tables for Crystallography (2006). Vol. C. ch. 9.2, p. 761

Figure 9.2.2.1

S. Ďurovič^a

Figure 9.2.2.1

Symmetry interpretation of close packings of equal spheres . The layer group of a single layer, the subgroup of its τ operations, and the number of asymmetric units N per unit mesh of the former, are given at the top right. The τ operations that have a continuation for the pair of adjacent layers, the layer group of the pair, and the value of F are indicated at the bottom right.