@article{HaubitzTsushimaSteudtneretal.2018,
  author    = {Haubitz, Toni and Tsushima, Satoru and Steudtner, Robin and Drobot, Bj{\"o}rn and Geipel, Gerhard and Stumpf, Thorsten and Kumke, Michael Uwe},
  title     = {Ultrafast Transient Absorption Spectroscopy of UO(2)(2+)and [UO2Cl](+)},
  series = {The journal of physical chemistry : A, Molecules, spectroscopy, kinetics, environment \& general theory},
  volume    = {122},
  journal   = {The journal of physical chemistry : A, Molecules, spectroscopy, kinetics, environment \& general theory},
  number    = {35},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {1089-5639},
  doi       = {10.1021/acs.jpca.8b05567},
  pages     = {6970 -- 6977},
  year      = {2018},
  abstract  = {For the only water coordinated "free" uranyl (VI) aquo ion in perchlorate solution we identified and assigned several different excited states and showed that the (3)Delta state is the luminescent triplet state from transient absorption spectroscopy. With additional data from other spectroscopic methods (TRLFS, UV/vis) we generated a detailed Jablonski diagram and determined rate constants for several state transitions, like the inner conversion rate constant from the (3)Phi state to the (3)Delta state transition to be 0.35 ps(-1). In contrast to luminescence measurements, it was possible to observe the highly quenched uranyl(VI) ion in highly concentrated chloride solution by TAS and we were able to propose a dynamic quenching mechanism, where chloride complexation is followed by the charge transfer from the excited state uranyl(VI) to chloride. This proposed quenching route is supported by TD-DFT calculations.},
  language  = {en}
}