Captivating bimolecular photoredox dynamics of a ligand-to-metal charge transfer complex.

ABSTRACT: Transition metal complexes featuring ligand-to-metal charge transfer (LMCT) excited states have been identified as promising candidates for driving electron transfer processes. To obtain an efficient system based on photo-induced bimolecular electron transfer, it is required that (1) photo-induced charge separation (CS) is faster than charge recombination (CR) of the separated charges, and (2) CR is slower than their spatial separation via cage escape (CE). Here, we investigate this competitive sequence of processes by the photocycle of a rhenium(ii) complex featuring a strongly oxidizing ²LMCT excited state. Intrinsic CS and CR rates were measured up to multimolar concentrations for several electron donors to elucidate both the diffusion-controlled and close-contact regi

SUBMITTER: Wegeberg C 

PROVIDER: S-EPMC12536450 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature