Ruthenium(II) diimine and rhenium(I) tricarbonyl diimine complexes with long-lived metal-to-ligand charge transfer (MLCT) excited states were used to trigger proton-coupled electron transfer (PCET) with phenol reaction partners. We investigated under which circumstances electron and proton are transferred in concerted fashion,1,2 and we explored the dependence of PCET rates and mechanisms on the distance between the electron donor and the electron acceptor.3,4 The key experimental techniques were time-resolved luminescence and transient absorption spectroscopy. (1) Bronner, C.; Wenger, O. S. J. Phys. Chem. Lett. 2012  , 3, 70-74(2) Bronner, C.; Wenger, O. S. Inorg. Chem. 2012  , 51, 8275-8283(3) Kuss-Petermann, M.; Wolf, H.; Stalke, D.; Wenger, O. S. J. Am. Chem. Soc. 2012  , 134, 12844-12854(4) Wenger, O. S. Acc. Chem. Res. 2013  ; doi: 10.1021/ar300289x

Proton-coupled electron transfer with photoexcited ruthenium and rhenium complexes

246th National Meeting (2013)

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