Electronic communication through the ureylene bridge: Spectroscopy, structure and electrochemistry of dimethyl 1′,1′-ureylenedi (1-ferrocenecarboxylate)

Khaled Mahmoud, Yi Tao Long, Gabriele Schatte, Heinz Bernhard Kraatz

Research output: Contribution to journalArticle

25 Citations (Scopus)


Dimethyl 1′,1′-ureylenedi (1-ferrocenecarboxylate) (1) formed during the synthesis of 1-amino, 1′-ferrocenecarboxylic acid shows virtual molecular centrosymmetry. Electronic coupling between the two Fc groups through the ureylene bridge results in both Fc groups being individually oxidizable (ΔE1/2≫0.14 V). The possible existence of intermolecular electronic communication has discussed. The oxidation was followed by spectroelectrochemistry. The separation between the two halfwave potentials ΔE1/2 =137±5 mV and the comproportionation constant Kc=207.

Original languageEnglish
Pages (from-to)2250-2255
Number of pages6
JournalJournal of Organometallic Chemistry
Issue number13
Publication statusPublished - 1 Jul 2004
Externally publishedYes



  • Diferrocene
  • Electronic communication
  • Spectroelectrochemistry
  • Ureylene bridge

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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