• Home
  1. Home
  2. Photoinduced bimolecular electron transfer investigated by femtosecond time-resolved infrared spectroscopy
Scientific article
OA Policy
English

Photoinduced bimolecular electron transfer investigated by femtosecond time-resolved infrared spectroscopy

Contributors

Mohammed, Omar F.; Banerji, Natalie Renuka; Lang, Bernhard Felix; Nibbering, Erik T. J.; Vauthey, Eric

Published in

The journal of physical chemistry. A, vol. 110, no. 51, p. 13676-13680

Publication date

2006

Abstract

Ultrafast infrared transient absorption spectroscopy is used to study the photoinduced bimolecular electron transfer reaction between perylene in the first singlet excited state and 1,4-dicyanobenzene in acetonitrile and dichloromethane. Following vibrational marker modes on both donor and acceptor sides in real time provides direct insight into the structural dynamics during the reaction. A band narrowing on a time scale of a few tens of picoseconds observed on the antisymmetric CN stretching vibration of the dicyanobenzene radical anion indicates that a substantial part of the excess energy is channeled into vibrational modes of the product, despite the fact that the reaction is weakly exergonic. An additional narrowing of the same band on a time scale of several hundreds of picoseconds observed in acetonitrile only is interpreted as a signature of the dissociation of the geminate ion pairs into free ions.

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

MOHAMMED, Omar F. et al. Photoinduced bimolecular electron transfer investigated by femtosecond time-resolved infrared spectroscopy. In: The journal of physical chemistry. A, 2006, vol. 110, n° 51, p. 13676–13680. doi: 10.1021/jp066079x

Main files (1)

Article (Published version)

Identifiers

Additional URL for this publication

http://pubs.acs.org/cgi-bin/article.cgi/jpcafh/2006/110/i51/pdf/jp066079x.pdf

Journal ISSN

1089-5639
727views
380downloads

Technical informations

Creation

21/09/2009 16:22:52

First validation

21/09/2009 16:22:52

Update

14/03/2023 15:14:15

Status update

14/03/2023 15:14:15

Last indexation

29/10/2024 12:14:41
All rights reserved by Archive ouverte UNIGE and the University of Geneva
OpenAIRE Indexed & Validated