Self-assembly of nano-/molecular scale polyhedral particles into desirable large-scale ordered superstructures provides a promising avenue for the design and synthesis of novel materials, where desirable functionalities are intimately related to crystalline packings of such particles, requires precise control of shape complexity, size dispersity and facet patchiness of the building blocks. However, to fulfill these requirements on molecular level is still a challenge.  Here we report the packing of a supramolecular truncated cuboctahedron (TCO) into double-helical (DH) nanowires on a graphite surface with a helical pattern ascribed to the symmetry of the TCOs and interactions between TCOs. Such a study is expected to advance our understanding of the design inputs needed to create complex, but precisely-controlled, hierarchical materials. It is also one of the few reported helical packing structures based on Platonic or Archimedean solids since the discovery of the Boerdijk–Coxeter helix. As such, it may provide experimental support for studies of packing theory at the molecular level.<br/>

Self-assembly of double helical nanowires using giant supramolecular truncated cuboctahedron

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.