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@ARTICLE{Ebeling:889775,
      author       = {Ebeling, René and Arasu, Narendra P. and Bensch, Lisa and
                      Schulze Lammers, Bertram and Mayer, Bernhard and Müller, T.
                      J. J. and Vázquez, Héctor and Karthäuser, Silvia},
      title        = {{P}reservation of the donor–acceptor character of a
                      carbazole–phenalenone dyad upon adsorption on {P}t(111)},
      journal      = {Nanoscale advances},
      volume       = {3},
      number       = {2},
      issn         = {2516-0230},
      address      = {Cambridge},
      publisher    = {Royal Society of Chemistry},
      reportid     = {FZJ-2021-00388},
      pages        = {538-549},
      year         = {2021},
      abstract     = {Donor–acceptor molecules are a subject of great attention
                      due to their immense potential in molecular electronics and
                      photovoltaics. Despite numerous extensive studies
                      demonstrating their functionality in solution, the
                      donor–acceptor character is usually lost upon adsorption
                      on a conducting substrate. Here the concept of breaking the
                      conjugation between the donor and acceptor unit by insertion
                      of a bridge is used. Furthermore, the bridge introduces a
                      kink into the dyad and thus, reduces the possibility of
                      hybridization with the substrate. A
                      donor–bridge–acceptor dyad composed of carbazole and
                      phenalenone units joined through a flexible bridge is
                      synthesized and deposited on a Pt(111) surface. Its
                      electronic properties are investigated with a combination of
                      low temperature scanning tunneling microscope measurements
                      and density functional theory simulations. Two preferential
                      adsorption configurations are identified, in which
                      individual molecules form strong bonds to the substrate and
                      to a Pt adatom. Differential conductance measurements and
                      atomistic simulations evidence the preservation of a reduced
                      donor–acceptor character upon adsorption of the molecule,
                      where this reduction is ascribed to the strong
                      molecule-metal hybridization. Our results highlight the
                      changes in donor–acceptor character of the dyad induced by
                      the substrate and provide guidelines for the use of
                      donor–bridge–acceptor molecules as functional units in
                      solid-state devices.},
      cin          = {PGI-7 / JARA-FIT},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-7-20110106 / $I:(DE-82)080009_20140620$},
      pnm          = {5233 - Memristive Materials and Devices (POF4-523)},
      pid          = {G:(DE-HGF)POF4-5233},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000611877100024},
      doi          = {10.1039/D0NA00925C},
      url          = {https://juser.fz-juelich.de/record/889775},
}