Modulating unimolecular charge transfer by exciting bridge vibrations.
Journal Article (Journal Article)
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.
Full Text
Duke Authors
Cited Authors
- Lin, Z; Lawrence, CM; Xiao, D; Kireev, VV; Skourtis, SS; Sessler, JL; Beratan, DN; Rubtsov, IV
Published Date
- December 2009
Published In
Volume / Issue
- 131 / 50
Start / End Page
- 18060 - 18062
PubMed ID
- 19928957
Electronic International Standard Serial Number (EISSN)
- 1520-5126
International Standard Serial Number (ISSN)
- 0002-7863
Digital Object Identifier (DOI)
- 10.1021/ja907041t
Language
- eng