DOI

  • Felix Allum
  • Michael Burt
  • Kasra Amini
  • Rebecca Boll
  • Hansjochen Köckert
  • Sadia Bari
  • Cédric Bomme
  • Felix Brauße
  • Barbara Cunha de Miranda
  • Stefan Düsterer
  • Benjamin Erk
  • Marie Géléoc
  • Romain Geneaux
  • Alexander S. Gentleman
  • Gildas Goldsztejn
  • Renaud Guillemin
  • David M.P. Holland
  • Iyas Ismail
  • Per Johnsson
  • Loïc Journel
  • Jochen Küpper
  • Jan Lahl
  • Jason W.L. Lee
  • Sylvain Maclot
  • Stuart R. Mackenzie
  • Bastian Manschwetus
  • Robert Mason
  • Jérôme Palaudoux
  • Maria Novella Piancastelli
  • Francis Penent
  • Dimitrios Rompotis
  • Arnaud Rouzée
  • Thierry Ruchon
  • Artem Rudenko
  • Evgeny Savelyev
  • Marc Simon
  • Nora Schirmel
  • Henrik Stapelfeldt
  • Simone Techert
  • Oksana Travnikova
  • Sebastian Trippel
  • Jonathan G. Underwood
  • Claire Vallance
  • Joss Wiese
  • Farzaneh Ziaee
  • Mark Brouard
  • Tatiana Marchenko
  • Daniel Rolles

The photodissociation dynamics of CH3I and CH2ClI at 272 nm were investigated by time-resolved Coulomb explosion imaging, with an intense non-resonant 815 nm probe pulse. Fragment ion momenta over a wide m/z range were recorded simultaneously by coupling a velocity map imaging spectrometer with a pixel imaging mass spectrometry camera. For both molecules, delay-dependent pump-probe features were assigned to ultraviolet-induced carbon-iodine bond cleavage followed by Coulomb explosion. Multi-mass imaging also allowed the sequential cleavage of both carbon-halogen bonds in CH2ClI to be investigated. Furthermore, delay-dependent relative fragment momenta of a pair of ions were directly determined using recoil-frame covariance analysis. These results are complementary to conventional velocity map imaging experiments and demonstrate the application of time-resolved Coulomb explosion imaging to photoinduced real-time molecular motion.

Original languageEnglish
Article number204313
Number of pages10
JournalThe Journal of Chemical Physics
Volume149
Issue number20
DOIs
StatePublished - 28 Nov 2018

    Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

    Research areas

  • METHYL-IODIDE, VELOCITY, BAND, CHLOROIODOMETHANE, SPECTROSCOPY, ABSORPTION, CIS, PHOTOFRAGMENTATION, PHOTOELECTRON, EXCITATION

ID: 36476492