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Figure 10
(a) Cross sections of regular hexa­gon with run index i = 5, a [11[\overline{2}]] growth axis, {111} top and bottom inter­faces, and {[\overline{1}]31} side inter­faces. The maximum expansive morphing shown corresponds to morph indices j = k1 = k2 = −4. For atom colours, refer to Fig. 4[link]. A smaller cross section [i = 3, even series, see König & Smith (2021BB12)] is shown by purple atoms and the corresponding maximum expansive morphing by cyan atoms. (b) Cross section with i = 5, j = 0, k1 = −2 and k2 = −4, with magenta lines assigning inter­face bonds to respective facets, and green arrows and labels showing inter­face lengths. For an example of reductive 3-axes morphing, refer to Fig. 2[link](c). For a detailed geometrical derivation of characteristic lengths and areas, refer to Appendix B[link].

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 78| Part 4| August 2022| Pages 643-664
https://doi.org/10.1107/S2052520622004942
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