Observation of parallel intersystem crossing and charge transfer-state dynamics in [Fe(bpy)₃]²⁺ from ultrafast 2D electronic spectroscopy.

ABSTRACT: Transition metal-based charge-transfer complexes represent a broad class of inorganic compounds with diverse photochemical applications. Charge-transfer complexes based on earth-abundant elements have been of increasing interest, particularly the canonical [Fe(bpy)₃]²⁺. Photoexcitation into the singlet metal-ligand charge transfer (¹MLCT) state is followed by relaxation first to the ligand-field manifold and then to the ground state. While these dynamics have been well-studied, processes within the MLCT manifold that facilitate and/or compete with relaxation have been more elusive. We applied ultrafast two-dimensional electronic spectroscopy (2DES) to disentangle the dynamics immediately following MLCT excitation of this compound. First, dynamics ascribed t

SUBMITTER: Lee A 

PROVIDER: S-EPMC10664481 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature