Porous materials possessing spatially well-arranged functionalities are promising candidates for applications in the fields of heterogeneous catalysis, sensing, gas storage or separation, membranes, or optoelectronics. Efficient synthesis of these complex molecular architectures is usually achieved by cross-linking of small organic buildings blocks under dynamic conditions with metal-organic or covalent organic frameworks (MOFs and COFs) as well as molecular cage compounds being prototype examples of current interest for suchlike functional materials. In contrast, the formation of robust porous structures by means of supramolecular interactions between rigid organic molecules might be a promising alternative thus combining low-weight materials with easy processing. However, the crystallization of stable organic structures possessing permanent porosity is still quite challenging and only a limited number of examples for supramolecular crystals retaining porosity in the solid state under activation conditions have been reported so far. Furthermore, supramolecular interactions might play a key role for the formation of defined morphologies of functional materials on larger size regimes.<br/>Here I report on our most recent investigations on the implementation of octahedral [60]fullerene hexakisadducts as connectivity centers in porous supramolecular frameworks as well as the spontaneous self-assembly of dye-containing COF crystallites into tubular nanostructures with inner tube diameters of around 100 nm.

Porous functional nanostructures mediated by directed supramolecular interactions

253rd National Meeting (2017)

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