Modulating Unimolecular Charge Transfer by Exciting Bridge Vibrations

Document Type


Publication Date


MeSH Terms

Chemical Processes, Anthracenes

Subject: LCSH

Chemical processes, Dimethylaniline, Anthracene


Chemical Engineering | Chemistry


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.


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Publisher Citation

Lin, Z., Lawrence, C. M., Xiao, D., Kireev, V. V., Skourtis, S. S., Sessler, J. L., … Rubtsov, I. V. (2009). Modulating Unimolecular Charge Transfer by Exciting Bridge Vibrations. Journal of the American Chemical Society, 131(50), 18060–18062. http://doi.org/10.1021/ja907041t