Room‐Temperature Photogeneration of Nitrosyl Linkage Isomers in Ruthenium Nitrosyl Complexes

Abstract : The conditions for the photogeneration of NO linkage isomers at room temperature are studied. By pulsed laser irradiation in the blue spectral range the long-lived Ru-ON isomer can be generated at room temperature, which is crucial for potential applications such as holography and data storage. Using static and time-resolved spectroscopy (UV/Vis and IR) we give evidence that the liftime of the Ru-(η 2-(NO)) isomer is a decisive parameter for the formation of Ru-ON isomer at high temperature due to a two-step isomerization mechanism Ru-NO → Ru-(η 2-(NO)) → Ru-ON. Furthermore, we report the low temperature structures for each isomer, which were revealed by photocrystallography.
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Artem Mikhailov, Emmanuel Wenger, Gennadiy Kostin, Dominik Schaniel. Room‐Temperature Photogeneration of Nitrosyl Linkage Isomers in Ruthenium Nitrosyl Complexes. Chemistry - A European Journal, Wiley-VCH Verlag, 2019, 25 (31), pp.7569-7574. ⟨10.1002/chem.201901205⟩. ⟨hal-02319723⟩

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