Hilton, David J.Prasankumar, Rohit P.Schelter, Eric J.Thorsmolle, Verner K.Trugman, Stuart A.Shreve, Andrew P.Kiplinger, Jaqueline L.Morris, David E.Taylor, Antoinette J.2010-11-302010-11-302010-11-30200810.1021/jp800392bhttps://infoscience.epfl.ch/handle/20.500.14299/61087WOS:000258633300010Ultrafast pump-probe spectroscopic studies have been performed on (C5Me5)(2)U[-N=C(Ph)(CH2Ph)](2) and (C5Me5)(2)Th[-N=C(Ph)(CH2Ph)](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 oil intersystem crossing and internal conversion processes in both complexes.Early Actinide ComplexesElectronic-StructureSandwich ComplexesExcited-StatesFluoroketimidestext::journal::journal article::research article