A 3.0 μs room temperature excited state lifetime of a bistridentate RuII-polypyridine complex for rod-like molecular arrays

Maria Abrahamsson, Michael Jäger, Tomas Österman, Lars Eriksson, Petter Persson, Hans Christian Becker, Olof Johansson, Leif Hammarström

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162 Citations (Scopus)


A bistridentate RuII-polypyridine complex [Ru(bqp)2]2+ (bqp = 2,6-bis(8′-quinolinyl)pyridine) has been prepared, which has a coordination geometry much closer to a perfect octahedron than the typical Ru(terpyridine)2-type complex. Thus, the complex displays a 3.0 μs lifetime of the lowest excited metal-to-ligand charge transfer (3MLCT) state at room temperature. This is, to the best of our knowledge, the longest MLCT state lifetime reported for a RuII-polypyridyl complex at room temperature. The structure allows for the future construction of rod-like, isomer-free molecular arrays by substitution of donor and acceptor moieties on the central pyridine units. This makes it a promising photosensitizer for applications in molecular devices for artificial photosynthesis and molecular electronics.

Original languageEnglish
Pages (from-to)12616-12617
Number of pages2
JournalJournal of the American Chemical Society
Issue number39
Publication statusPublished - Oct 4 2006

ASJC Scopus subject areas

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

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