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