Publication: Energy transfer mediated by asymmetric hydrogen-bonded interfaces
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Date
2012
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Royal Society of Chemistry (RSC)
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Young, Elizabeth R., Joel Rosenthal, and Daniel G. Nocera. 2012. “Energy Transfer Mediated by Asymmetric Hydrogen-Bonded Interfaces.” Chem. Sci. 3 (2): 455–459. doi:10.1039/c1sc00596k.
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Abstract
Amidine-appended ferrocene derivatives form a supramolecular assembly with Ru(ii)(bpy-COOH) (L)22+ complexes (bpy-COOH is 4-CO2H-4′-CH3-bpy and L = bpy, 2,2′-bipyridine or btfmbpy, 4,4′-bis (trifluoromethyl)-2,2′-bipyridine). Steady-state, time-resolved spectroscopy and kinetic isotope effects establish that the metal-to-ligand charge transfer excited states of the Ru(ii) complexes are quenched by proton-coupled energy transfer (PCEnT). These results show that proton motion can be effective in mediating not only electron transfer (ET) but energy transfer (EnT) as well.
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