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Figure 3
Hexagonal sublattice of index T(5,4) = 21, [\Lambda \rightarrow \Lambda{''}]. With respect to the solid circles the sublattice is of index T(3,1) = 7 only, [\Lambda{'} \rightarrow \Lambda{''}]. The corresponding MCGs are given by [Y_{i} \equiv 17X_{i} \,({\rm mod}\, 21)] and [Y_{i} \equiv 3X_{i} \,({\rm mod}\, 7)]. See Fig. 4[link] for the enantiomorphous sublattice T(5,1) = 21 and Fig. 6[link] for chemical realizations.

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ISSN: 2053-2733
Volume 65| Part 6| October 2009| Pages 532-542
doi:10.1107/S0108767309037088
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