ArticleChemical science2026
Jahn-Teller distortion controls electron transfer in photoexcited Cu(i) donor-acceptor systems.
Article in Chemical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The Jahn-Teller distortion (JTD) is a defining structural response to electronic excitation in Cu(i)-based transition metal complexes, yet its role in photoinduced electron transfer (PET) remains largely unexplored. Here, we demonstrate that the JTD governs charge separation (CS) through a vibronically controlled conical intersection in heteroleptic Cu(i) bisphenanthroline-naphthalene diimide (CuHETPHEN-NDI) donor-acceptor dyads. Using 20-fs broadband transient absorption spectroscopy combined with coherent vibrational wavepacket (CVWP) analysis and quantum chemical calculations, we directly track nuclear motions that steer the system from the metal-to-ligand charge-transfer (
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