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@ARTICLE{Busiakiewicz:11169,
      author       = {Busiakiewicz, A. and Karthäuser, S. and Homberger, M. and
                      Kowalzik, P. and Waser, R. and Simon, U.},
      title        = {{E}lectronic transport properties of individual
                      4,4'-bis(mercaptoalkyl)-biphenyl derivatives measured in
                      {STM}-based break junctions},
      journal      = {Physical Chemistry Chemical Physics},
      volume       = {12},
      issn         = {1463-9076},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {PreJuSER-11169},
      pages        = {10518 - 10524},
      year         = {2010},
      note         = {The authors thank Birgit Hahn and Brigitte Hermanns (both
                      IAC) for the support in the preparation of the acetyl
                      protected MABPs. Financial support by the German Research
                      Foundation (DFG) and the Institute Functional Molecular
                      Systems for Information Technology (IFMIT) is gratefully
                      acknowledged.},
      abstract     = {Electronic transport measurements of single, systematically
                      varied 4,4'-bis(mercaptoalkyl)-biphenyl derivatives (MABP)
                      are performed in a controlled test-device. The molecules are
                      composed of a central biphenyl unit (BP) carrying two
                      mercaptoalkyl substituents with different chain lengths (m,
                      n = number of CH(2)-units), in the para-position of the BP
                      unit. The total length of both spacers is m + n = 10. The
                      molecular conductance of these individual MABPs deposited on
                      Au (111) substrates is studied using STM-based break
                      junctions. It is shown that the molecular conductance
                      depends on the relative position of the BP unit within the
                      molecule. In the case of the symmetric derivative 5BP5 a
                      value of 0.07 +/- 0.01 nS is obtained, while for 1BP9 the
                      molecular conductance is doubled and a value of 0.17 +/-
                      0.03 nS results. This relatively high value of conductance
                      for the single Au(tip)-1BP9-Au(substrate) junction is
                      attributed to an increased coupling of the BP unit to the
                      adjacent electrode, i.e. the STM-tip or the Au-substrate. We
                      address the role of the specific contact situation (-S-Au)
                      and of the position of the electrically active molecular
                      moiety and thus come to a deeper understanding of the
                      electronic transport properties of
                      4,4'-bis(mercaptoalkyl)biphenyl derivatives.},
      keywords     = {J (WoSType)},
      cin          = {IFF-6 / JARA-FIT},
      ddc          = {540},
      cid          = {I:(DE-Juel1)VDB786 / $I:(DE-82)080009_20140620$},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Chemistry, Physical / Physics, Atomic, Molecular $\&$
                      Chemical},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:20607163},
      UT           = {WOS:000281352300047},
      doi          = {10.1039/c004245e},
      url          = {https://juser.fz-juelich.de/record/11169},
}