Modulating unimolecular charge transfer by exciting bridge vibrations
Date
2009Author
Lin, Z.Lawrence, C. M.
Xiao, D.
Kireev, V. V.
Skourtis, Spiros S.
Sessler, J. L.
Beratan, David N.
Rubtsov, I. V.
Source
Journal of the American Chemical SocietyVolume
131Issue
50Pages
18060-18062Google Scholar check
Keyword(s):
Metadata
Show full item recordAbstract
(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.
Collections
Cite as
Related items
Showing items related by title, author, creator and subject.
-
Article
Robust Direct Adaptive Regulation of Unknown Disturbances in the Vicinity of Low-Damped Complex Zeros-Application to AVC
Castellanos Silva, A.; Landau, I. D.; Ioannou, Petros A. (2016)Adaptive feedback control approaches have been widely used to address the issue of rejecting multiple narrow band disturbances with unknown and time-varying characteristics (frequency, phase, and amplitude) in active ...
-
Article
Time resolved infrared absorption studies of geminate recombination and vibrational relaxation in OCIO photochemistry
Bolinger, J. C.; Hayes, Sophia C.; Reid, P. J. (2004)The first ultrafast time-resolved infrared absorption studies of the geminate recombination and vibrational relaxation dynamics of aqueous chlorine dioxide (OCIO) were presented. The rapid increase in optical density ...
-
Article
Fourier transform infrared evidence for a ferric six-coordinate nitrosylheme b3 complex of cytochrome cbb3 oxidase from Pseudomonas stutzeri at ambient temperature
Stavrakis, Stavros; Pinakoulaki, Eftychia; Urbani, A.; Varotsis, Constantinos (2002)We report the first vibrational study of NO bound to an oxidized heme-copper oxidase. Cytochrome cbb3 oxidase from P. stutzeri reduces both O2 and NO to H2O and N2O, respectively. The ferric nitrosyl complex of cbb3 exhibits ...