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The Interaction of 1,1'-Diisocyanoferrocene with Gold: Formation of Monolayers and Supramolecular Polymerization of an Aurophilic Ferrocenophane

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DOI

  • Ulrich Siemeling, Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel , Heinrich-Plett-Str. 40, D-34132 Kassel, Germany., Germany
  • Dag Rother, Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel , Heinrich-Plett-Str. 40, D-34132 Kassel, Germany., Germany
  • Clemens Bruhn, Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel , Heinrich-Plett-Str. 40, D-34132 Kassel, Germany.
  • ,
  • Heinrich Fink, Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel , Heinrich-Plett-Str. 40, D-34132 Kassel, Germany., Germany
  • Tobias Weidner
  • Frank Träger, Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel , Heinrich-Plett-Str. 40, D-34132 Kassel, Germany., Germany
  • Alexander Rothenberger, University of Karlsruhe, Germany
  • Dieter Fenske, University of Karlsruhe, Germany
  • Andreas Priebe, Heidelberg University , Germany
  • Jörg Maurer, University of Stuttgart, Germany
  • Rainer Winter, University of Stuttgart, Germany

The coordination chemistry of 1,1'-diisocyanoferrocene (1) was investigated. Its reaction with Cr(CO)5(THF) (2 equiv) affords (1)[Cr(CO)5]2, which exhibits eclipsed cyclopentadienyl rings with a synclinal arrangement of the two substituents. 1 behaves like an aryl isocyanide in this compound according to IR spectroscopic data, and its oxidation leads to a marked decrease of net electron donor ability. The reaction of 1 with AuCl(SMe2) affords the insoluble coordination polymer [(1)(AuCl)2]infinity. The (1)(AuCl)2 molecules adopt a 3,4-diaura-[6]ferrocenophane structure. They are aggregated in a zipperlike fashion through aurophilic interactions, with Au-Au distances ranging from 3.34 to 3.48 A. The adsorption of 1 from acetonitrile solution on polycrystalline gold affords a self-assembled monolayer. Both isocyanide groups are binding to the surface.

Original languageEnglish
JournalJournal of the American Chemical Society
Volume127
Issue4
Pages (from-to)1102-3
Number of pages2
ISSN0002-7863
DOIs
Publication statusPublished - 2005
Externally publishedYes

    Research areas

  • Journal Article

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