Ultrafast excited state dynamics of the bi- and termolecular stilbene-viologen charge-transfer complexes assembled via host–guest interactions

Excited state dynamics of the highly stable 1:1 and 2:1 charge-transfer (CT) complexes assembled via host–guest interactions between a biscrown stilbene and a viologen vinylog was studied using transient pump-supercontinuum probe spectroscopy. In acetonitrile, both complexes showed ultrafast two-com...

Full description

Saved in:
Bibliographic Details
Published in:Chemical physics 2004-03, Vol.298 (1), p.251-261
Main Authors: Ushakov, E.N., Nadtochenko, V.A., Gromov, S.P., Vedernikov, A.I., Lobova, N.A., Alfimov, M.V., Gostev, F.E., Petrukhin, A.N., Sarkisov, O.M.
Format: Article
Language:English
Subjects:
Biscrown stilbene
Electron transfer
Femtosecond transient absorption dynamics
Internal conversion
Supramolecular donor–acceptor complexes
Vibrational relaxation
Viologen vinylogs
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Excited state dynamics of the highly stable 1:1 and 2:1 charge-transfer (CT) complexes assembled via host–guest interactions between a biscrown stilbene and a viologen vinylog was studied using transient pump-supercontinuum probe spectroscopy. In acetonitrile, both complexes showed ultrafast two-component transient absorption dynamics after excitation in the CT absorption band by a 616 nm, 70 fs laser pulse. The faster component ( τ
ISSN:0301-0104
DOI:10.1016/j.chemphys.2003.12.002