AI Article Synopsis

  • The study focuses on how CO molecules are confined within a nanoscale anthraquinone network on a copper surface, specifically with pore sizes around 4 nm.
  • The CO molecules form a shell structure that corresponds to the electronic states of the substrate, filling them in order of increasing energy levels.
  • Despite the regular sixfold symmetry of the pore, the arrangement of CO molecules reflects the threefold symmetry of the network, demonstrating the substrate’s significant influence on the adsorption process.

Article Abstract

Nanoscale confinement of adsorbed CO molecules in an anthraquinone network on Cu(111) with a pore size of ≈4  nm arranges the CO molecules in a shell structure that coincides with the distribution of substrate confined electronic states. Molecules occupy the states approximately in the sequence of rising electron energy. Despite the sixfold symmetry of the pore boundary itself, the adsorbate distribution adopts the threefold symmetry of the network-substrate system, highlighting the importance of the substrate even for such quasi-free-electron systems.

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http://dx.doi.org/10.1103/PhysRevLett.105.066104DOI Listing

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