Phenanthroline-polyoxometalate hybrid compounds and the observation of intramolecular charge transfer

Itsik Bar-Nahum, K. V. Narasimhulu, Lev Weiner, Ronny Neumann

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)


A phenanthroline ligand has been covalently modified at the 2 and 9 positions by an aminophenylhexamolybdate substituent. The 1H NMR spectrum indicated a strong electron-withdrawing effect of the hexamolybdate (Mo 6O192-) moiety on the phenanthroline ligand. UV-vis and cyclic voltammetry showed extended conjugation of the hybrid phenanthroline-polyoxometalate compound and the possibility of easy oxidation of the extended phenanathroline ligand. Further EPR experiments provided strong evidence for an intramolecular charge-transfer process with the formation of a phenanthroline cation radical and a reduced hexamolybdate.

Original languageEnglish
Pages (from-to)4900-4902
Number of pages3
JournalInorganic Chemistry
Issue number14
Publication statusPublished - Jul 11 2005

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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