Publications [#231933] of David N. Beratan
Journal Articles
- Lin, Z; Lawrence, CM; Xiao, D; Kireev, VV; Skourtis, SS; Sessler, JL; Beratan, DN; Rubtsov, IV, "Modulating unimolecular charge transfer by exciting bridge vibrations.", Journal of the American Chemical SocietyDecember,, 2009, 131(50), 18060-18062 (Highlighted in Chemical and & Engineering News 12/7/09; Nature Chemistry 12/11/09.) [19928957], [doi].
(last updated on 2024/07/16)Abstract:
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.