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@ARTICLE{Bauer:845978,
      author       = {Bauer, O. and Ikonomov, J. and Schmitz, C. H. and
                      Willenbockel, M. and Soubatch, S. and Tautz, Frank Stefan
                      and Sokolowski, M.},
      title        = {{A}dsorption of 3,4,9,10-{P}erylenetetracarboxylic {A}cid
                      {D}ianhydride on the {C}u 3 {A}u(111) {S}urface {S}tudied by
                      {N}ormal-{I}ncidence {X}-ray {S}tanding {W}aves},
      journal      = {The journal of physical chemistry / C},
      volume       = {122},
      number       = {20},
      issn         = {1932-7455},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2018-03150},
      pages        = {10904 - 10917},
      year         = {2018},
      abstract     = {We report on the structure formation and the adsorption
                      height of the organic semiconductor molecule
                      3,4,9,10-perylenetetracarboxylic acid dianhydride (PTCDA) on
                      the Cu3Au(111) surface. The results are based on a detailed
                      analysis of the vertical positions of the carbon and oxygen
                      atoms of PTCDA versus the topmost layer of the Cu3Au surface
                      by the normal-incidence X-ray standing wave (NIXSW)
                      technique. The oxygen atoms are found to be located at a
                      larger vertical height than the perylene core, and thus the
                      molecule exhibits a boat-like distortion. The van der Waals
                      radii corrected adsorption height of the perylene core
                      follows the trend with the work function, which was found
                      for PTCDA on the (111) surfaces of the pure coinage metals.
                      In addition, changes related to the exposure to synchrotron
                      radiation are reported. We find an increase in Cu and a
                      reduction of the Au enrichment of the as-prepared Cu3Au(111)
                      surface, while the adsorption height of the PTCDA decreases,
                      indicating an X-ray beam-induced transition to a second
                      stronger bonded state of the PTCDA.},
      cin          = {PGI-3 / JARA-FIT},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-3-20110106 / $I:(DE-82)080009_20140620$},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000433403400026},
      doi          = {10.1021/acs.jpcc.8b02269},
      url          = {https://juser.fz-juelich.de/record/845978},
}