Figure 19
(a) The 2V23V2 (10×1) d chain graph and the corresponding unit-distance graph in which nt:ng = 1:1; (b) a 2V23V2, (6×1, 2×21) b chain graph and the corresponding unit-distance graph in which nt:ng = 1:2. Green dashed lines show the repeat unit of each unit-distance graph. Legend as in Fig. 18. |