Abstract
The photoaquation of the OsIVCl62- complex was studied by means of stationary photolysis, nanosecond laser flash photolysis and ultrafast kinetic spectroscopy. The OsIVCl5(OH)2- complex was found to be the only reaction product. The quantum yield of photoaquation is rather low and wavelength-dependent. No impact of redox processes on photoaquation was revealed. The total characteristic lifetime of the process is about 80 ps. Three intermediates were recorded in the femto- and picosecond time domains and assigned to different Os(iv) species. The nature of intermediates and possible mechanisms of photoaquation are discussed.
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Glebov, E.M., Pozdnyakov, I.P., Matveeva, S.G. et al. Primary photophysical and photochemical processes for hexachloroosmate(IV) in aqueous solution. Photochem Photobiol Sci 16, 220–227 (2017). https://doi.org/10.1039/c6pp00382f
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DOI: https://doi.org/10.1039/c6pp00382f