ArticleNature chemistry2015
Sub-50-fs photoinduced spin crossover in [Fe(bpy)₃]²⁺.
Article in Nature chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers.
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Who cites it
98 citing papers in PubMed.
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- Elucidating the Transition Kernel and Anharmonic Coupling in the Spin-crossover Process of a [FeAngewandte Chemie (International ed. in English) · 2026Article
- Tracking coherent vibronic and vibrational motions in ultrafast proton transfer.Nature communications · 2026Article
- Jahn-Teller distortion controls electron transfer in photoexcited Cu(i) donor-acceptor systems.Chemical science · 2026Article
- Activating plasmonic catalysis through light-mediated steady-state spin modulation.Nature communications · 2026Article
- Homomolecular Photon Upconversion in a Perylene-Decorated Iron(III) Complex.Journal of the American Chemical Society · 2025Article
- Spin-State and Reorganization Energy Considerations for Metal-Centered Photoredox Catalysis.Journal of the American Chemical Society · 2025Article
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- A manganese(I) complex with a 190 ns metal-to-ligand charge transfer lifetime.Nature communications · 2025Article
- A Heterodox Approach for Designing Iron Photosensitizers: Pentacyanoferrate(II) Complexes with Monodentate Bipyridinium/Pyrazinium-Based Acceptor Ligands.Inorganic chemistry · 2025Article
- Molecular Design Principles for Photoactive Transition Metal Complexes: A Guide for "Photo-Motivated" Chemists.Journal of the American Chemical Society · 2025Review
- Quantifying the distinct role of plasmon enhancement mechanisms in prototypical antenna-reactor photocatalysts.Nature communications · 2025Article
- Capturing ultrafast molecular motions and lattice dynamics in spin crossover film using femtosecond diffraction methods.Nature communications · 2025Article
- Simulation of Ultrafast Excited-State Dynamics in Fe(II) Complexes: Assessment of Electronic Structure Descriptions.Journal of chemical theory and computation · 2025Article
38 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
It is known that excitation by visible light of the singlet metal-to-ligand charge-transfer ((1)MLCT) states of Fe(II) complexes leads to population of the lowest-lying high-spin quintet state ((5)T) with unity quantum yield. Here we investigate this so-called spin crossover (SCO) transition in aqueous iron(II)tris(bipyridine). We use pump-probe transient absorption spectroscopy with a high time resolution of <60 fs in the ultraviolet probe range, in which the (5)T state absorbs, and of <40 fs in the visible probe range, in which both the hot MLCT state and the (5)T state absorb. Our results show that the (5)T state is impulsively populated in less than 50 fs, which is the time we measured for the depopulation of the MCLT manifold. We propose that non-totally-symmetric modes mediate the process, possibly high-frequency modes of the bipyridine (bpy) ligand. These results show that even though the SCO process in Fe(II) complexes represents a strongly spin-forbidden (ΔS = 2) two-electron transition, spin flipping occurs at near subvibrational times and is intertwined with the electron and structural dynamics of the system.
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Registered trials
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