Figure 8
From: Resonant X-ray photo-oxidation of light-harvesting iron (II/III) N-heterocyclic carbene complexes
State diagram depicting the relative energies and electron configurations anticipated in Fe L-edge RPES of (a) closed-shell \(\hbox {Fe}^{{\rm{II}}}\) and (b) open-shell \(\hbox {Fe}^{{\rm{III}}}\) low spin complexes. In each case the ground/initial state, core-excited intermediate states and final states following participant decay are shown. For each state presented, the core (Fe 2p), valence (Fe 3d \({\hbox {t}_{{\rm{2g}}}}\) and \({\hbox {e}_{{\rm{g}}}}\) shells) and overall multiplicities are given in the usual convention where 1,2,3 stated before a bar or bracket indicate singlet, doublet and triplet spin configurations. The number following a ket or bracket indicates the occupancy. (\(\hbox {e}^-\)) is used to denote the emitted photoelectron. They grey dashed arrows indicate suppressed transitions.
