Dodecahedral structures with Mosseri-Sadoc tiles

Nazife Ozdes Koca*, Ramazan Koc, Mehmet Koca, Abeer Al-Siyabi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The 3D facets of the Delone cells of the root lattice D 6 which tile the 6D Euclidean space in an alternating order are projected into 3D space. They are classified into six Mosseri-Sadoc tetrahedral tiles of edge lengths 1 and golden ratio τ = (1 + 51/2)/2 with faces normal to the fivefold and threefold axes. The icosahedron, dodecahedron and icosidodecahedron whose vertices are obtained from the fundamental weights of the icosahedral group are dissected in terms of six tetrahedra. A set of four tiles are composed from six fundamental tiles, the faces of which are normal to the fivefold axes of the icosahedral group. It is shown that the 3D Euclidean space can be tiled face-to-face with maximal face coverage by the composite tiles with an inflation factor τ generated by an inflation matrix. It is noted that dodecahedra with edge lengths of 1 and τ naturally occur already in the second and third order of the inflations. The 3D patches displaying fivefold, threefold and twofold symmetries are obtained in the inflated dodecahedral structures with edge lengths τ n with n ≥ 3. The planar tiling of the faces of the composite tiles follows the edge-to-edge matching of the Robinson triangles.

Original languageEnglish
Pages (from-to)105-116
Number of pages12
JournalActa Crystallographica Section A: Foundations and Advances
Publication statusPublished - May 1 2021


  • Aperiodic tiling
  • Icosahedral quasicrystals
  • Lattices
  • Polyhedra
  • Projections of polytopes

ASJC Scopus subject areas

  • Structural Biology
  • Biochemistry
  • General Materials Science
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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