Fig. 4: The increase of tessellation complexity by inserting new tiles and binding motifs.
From: Complex k-uniform tilings by a simple bitopic precursor self-assembled on Ag(001) surface
a–c The 2-uniform tiling (b) is obtained by inserting a square tile between the rows of orange triangles of regular tiling (a). Likewise, insertion of an additional square results in the 3-uniform tiling (c). d–f Tentative molecular models based on LEED and STM data with colored tiles in the background. C: black, O: red, H: blue. Vertical rows of 0H-, 1H-, and 2H-BDA are marked by an inscription 0H, 1H, and 2H, respectively.
