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Ultrafast study of the photodissociation of bromoiodomethane in acetonitrile upon 266 nm excitation

Tarnovsky, Alexander LU ; Wall, Magnus LU ; Gustafsson, M ; Lascoux, Noelle LU ; Sundström, Villy LU and Åkesson, Eva LU orcid (2002) In The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory 106(25). p.5999-6005
Abstract
We studied the A-band photodissociation of bromoiodomethane, CH2BrI, in acetonitrile solution at room temperature by femtosecond pump-probe spectroscopy, Initiated by the 266 nm light, this reaction leads to the CH2Br-I isomer, most likely produced via in-cage recombination of the CH,Br and I photofragments. The isomer is formed vibrationally excited with a time constant of similar to7.5 ps and the hottest isomer molecules are observed as early as I ps after the UV excitation, Vibrational relaxation of the isomer molecules takes place on two distinct time scales of a few and similar to40 ps. The ground-state lifetime of the isomer is about 2.5 ns.
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
volume
106
issue
25
pages
5999 - 6005
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000176356400005
  • scopus:0037183059
ISSN
1520-5215
DOI
10.1021/jp014306j
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
id
4df757cf-5580-4d1c-9e13-6fb75f185016 (old id 334779)
date added to LUP
2016-04-01 15:53:39
date last changed
2023-04-07 17:38:17
@article{4df757cf-5580-4d1c-9e13-6fb75f185016,
  abstract     = {{We studied the A-band photodissociation of bromoiodomethane, CH2BrI, in acetonitrile solution at room temperature by femtosecond pump-probe spectroscopy, Initiated by the 266 nm light, this reaction leads to the CH2Br-I isomer, most likely produced via in-cage recombination of the CH,Br and I photofragments. The isomer is formed vibrationally excited with a time constant of similar to7.5 ps and the hottest isomer molecules are observed as early as I ps after the UV excitation, Vibrational relaxation of the isomer molecules takes place on two distinct time scales of a few and similar to40 ps. The ground-state lifetime of the isomer is about 2.5 ns.}},
  author       = {{Tarnovsky, Alexander and Wall, Magnus and Gustafsson, M and Lascoux, Noelle and Sundström, Villy and Åkesson, Eva}},
  issn         = {{1520-5215}},
  language     = {{eng}},
  number       = {{25}},
  pages        = {{5999--6005}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory}},
  title        = {{Ultrafast study of the photodissociation of bromoiodomethane in acetonitrile upon 266 nm excitation}},
  url          = {{http://dx.doi.org/10.1021/jp014306j}},
  doi          = {{10.1021/jp014306j}},
  volume       = {{106}},
  year         = {{2002}},
}