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Title

Effect of the Addition of a Fused Donor−Acceptor Ligand on a Ru(II) Complex: Synthesis, Characterization, and Photoinduced Electron Transfer Reactions of [Ru(TTF-dppz) 2 (Aqphen)] 2+

Authors
Ran, Ying-Fen
Jia, Hong-Peng
Liu, Shi-Xia
Decurtins, Silvio
Published in Inorganic Chemistry. 2011, vol. 50, no. 8, p. 3295-3303
Abstract The synthesis and the photophysical properties of the complex [Ru(TTF-dppz)2(Aqphen)]2+(TTF = tetrathiafulvalene, dppz = dipyrido-[3,2-a:2',3'-c]phenazine, Aqphen = anthraquinone fused to phenanthroline via a pyrazine bridge) are described. In this molecular triad excitation into the metal−ligand charge transfer bands results in the creation of a long-lived charge separated state with TTF acting as electron donor and anthraquinone as terminal acceptor. The lifetime of the charge-separated state is 400 ns in dichloromethane at room temperature. A mechanism for the charge separation involving an intermediate charge-separated state is proposed based on transient absorption spectroscopy.
Stable URL https://archive-ouverte.unige.ch/unige:15004
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Other version: http://pubs.acs.org/doi/abs/10.1021/ic101951n
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Deposited on : 2011-04-19

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