The interaction of 1,1′-diisocyanoferrocene with gold: Formation of monolayers and supramolecular polymerization of an aurophilic ferrocenophane

Ulrich Siemeling*, Dag Rother, Clemens Bruhn, Heinrich Fink, Tobias Weidner, Frank Träger, Alexander Rothenberger, Dieter Fenske, Andreas Priebe, Jörg Maurer, Rainer Winter

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

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]α. 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 Å. 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 (US)
Pages (from-to)1102-1103
Number of pages2
JournalJournal of the American Chemical Society
Volume127
Issue number4
DOIs
StatePublished - Feb 2 2005

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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