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

doi:10.1021/ja064262y

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

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

Uppsala University

Research output: Contribution to journal › Article

160 Citations (Scopus)

Abstract

A bistridentate Ru^II-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 Ru^II-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 language	English
Pages (from-to)	12616-12617
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	39
DOIs	https://doi.org/10.1021/ja064262y
Publication status	Published - Oct 4 2006

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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Abrahamsson, M., Jäger, M., Österman, T., Eriksson, L., Persson, P., Becker, H. C., Johansson, O., & Hammarström, L. (2006). A 3.0 μs room temperature excited state lifetime of a bistridentate Ru^II-polypyridine complex for rod-like molecular arrays. Journal of the American Chemical Society, 128(39), 12616-12617. https://doi.org/10.1021/ja064262y

A 3.0 μs room temperature excited state lifetime of a bistridentate Ru^II-polypyridine complex for rod-like molecular arrays. / Abrahamsson, Maria; Jäger, Michael; Österman, Tomas; Eriksson, Lars; Persson, Petter; Becker, Hans Christian; Johansson, Olof; Hammarström, Leif.

In: Journal of the American Chemical Society, Vol. 128, No. 39, 04.10.2006, p. 12616-12617.

Research output: Contribution to journal › Article

Abrahamsson, Maria ; Jäger, Michael ; Österman, Tomas ; Eriksson, Lars ; Persson, Petter ; Becker, Hans Christian ; Johansson, Olof ; Hammarström, Leif. / A 3.0 μs room temperature excited state lifetime of a bistridentate Ru^II-polypyridine complex for rod-like molecular arrays. In: Journal of the American Chemical Society. 2006 ; Vol. 128, No. 39. pp. 12616-12617.

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abstract = "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.",

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