Modulating unimolecular charge transfer by exciting bridge vibrations
Date
2009Author
Lin, Z.Lawrence, C. M.
Xiao, D.
Kireev, V. V.
![ORCID logo](https://orcid.org/sites/default/files/images/orcid_16x16.png)
Sessler, J. L.
Beratan, David N.
Rubtsov, I. V.
Source
Journal of the American Chemical SocietyVolume
131Issue
50Pages
18060-18062Google Scholar check
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(Figure Presented) 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. © 2009 American Chemical Society.
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