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Keywords:

  • crystal engineering;
  • hydrogen bonding;
  • nanoporous materials;
  • organic crystals;
  • supramolecular materials
Thumbnail image of graphical abstract

Holey suitable crystals: A trisbenzimidazolone molecule self-assembles by hydrogen bonding to form a permanently porous crystal with an apparent surface area, SABET, of 2796 m2 g−1 (see scheme), demonstrating that extrinsic, intermolecular porosity is a viable strategy for highly porous materials.