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Surface manipulation of a curved polycyclic aromatic hydrocarbon-based nano-vehicle molecule equipped with triptycene wheels

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Academic year: 2021

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Figure

Figure  1: The  chemical  skeleton  (left) and three  possible optimized  conformations  of the  free  PAH-4W  molecule  using  the  MOPAC  package  [27]
Figure  2: Typical STM images just after the molecule sublimation  process. Since intact PAH- PAH-4W  molecules  are  mainly  stabilized  at  the  step  edges,  the  probability  of  finding  molecules  decreases inversely to the terrace width
Figure  3:  (a)  Typical  scanning  tunneling  dI/dV  spectra  recorded  at  slightly  different  tip  locations  on  the  molecule  chassis  but  near  the  wheel
Figure  5:  Typical  tip  height  variations  during  an  STM  constant  current  lateral  mechanical  molecule manipulation  with tip trajectory indicated on the  images before (left) and after (right)  manipulation
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