Kagome-phase

Double DBAs 25a-c bearing six alkyl chains also formed porous networks of Kagome type via van der Waals linkages formed by interdigitation of three alkyl chains [91]. Although several different patterns were formed in this case, at very low concentration the Kagome phase was formed exclusively. 

Figure 8.1 Two types of Kagome nets that form the basis of the o—phase crystal structure. A—net with shared corners. B—net with shared edges.

The Laves phases form a homeotect structure type set (a family of polytypic structures). In all of them, described in terms of a hexagonal cell, three closely spaced 36 nets of atoms are followed (in the z direction of the same cell) by a 3636 net. The 36 nets are stacked on the same site as the kagome 3636 nets which they surround. For instance (3-BAC- -CAB in the two slabs MgZn2-type (h) structure, (3-BAC- -CBA-a-ACB in the three slabs MgCu2-type (c) structure,... 

Layer stacking symbols (K + 3T slabs formed by kagome and triangular nets) of the main types of Laves phases ... 

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