Ultrafast spectroscopy of the uranium(IV) and thorium(IV) bis(ketimide) complexes (C5Me5)2An[-N=C(Ph)(CH 2Ph)]2 (An = Th, U)

Academic Article


  • Ultrafast pump-probe spectroscopic studies have been performed on (C 5Me5)2U[ - N=C(Ph)(CH2Ph)] 2 and (C5Me5)2Th[ - N=C(Ph)(CH 2Ph)]2 including, for the uranium complex, the first direct measurement of dynamics of electronic deactivation within a 5f-electron manifold. Evidence has been found for strong coupling between the electronic ground state and the f-electron manifold which dominates the dynamics of the excited states of the bis(ketimide) uranium complex. These also demonstrate strong singlet - f manifold coupling, which assists in the deactivation of the photoexcited state of the uranium complex, and provide information on intersystem crossing and internal conversion processes in both complexes. © 2008 American Chemical Society.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Hilton DJ; Prasankumar RP; Schelter EJ; Thorsmølle VK; Trugman SA; Shreve AP; Kiplinger JL; Morris DE; Taylor AJ
  • Start Page

  • 7840
  • End Page

  • 7847
  • Volume

  • 112
  • Issue

  • 34