Modulating unimolecular charge transfer by exciting bridge vibrations.
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Ultrafast UV-vibrational spectroscopy was used to investigate how vibrational excitation of the bridge changes photoinduced electron transfer between donor (dimethylaniline) and acceptor (anthracene) moieties bridged by a guanosine-cytidine base pair (GC). The charge-separated (CS) state yield is found to be lowered by high-frequency bridge mode excitation. The effect is linked to a dynamic modulation of the donor-acceptor coupling interaction by weakening of H-bonding and/or by disruption of the bridging base-pair planarity.
Published Version (Please cite this version)10.1021/ja907041t
Publication InfoLin, Z; Lawrence, CM; Xiao, D; Kireev, VV; Skourtis, SS; Sessler, JL; ... Rubtsov, IV (2009). Modulating unimolecular charge transfer by exciting bridge vibrations. J Am Chem Soc, 131(50). pp. 18060-18062. 10.1021/ja907041t. Retrieved from http://hdl.handle.net/10161/4047.
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