Charge-transfer emission of any type is extremely rare for coordination complexes of iron. Now, an Fe(iii) complex has been devised that shows two-colour luminescence arising from dual metal-to-ligand and ligand-to-metal charge-transfer emission.
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Ortiz, R.J., Herbert, D.E. Something new under the sun. Nat. Chem. 15, 446–447 (2023). https://doi.org/10.1038/s41557-023-01169-2
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DOI: https://doi.org/10.1038/s41557-023-01169-2
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