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Issue 1, 2018
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Short-lived intermediates in photochemistry of an OsCl62− complex in aqueous solutions

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Abstract

Two mechanisms of OsIVCl62− photolysis were studied by means of quantum chemical calculations in gas and aqueous phases. The difference between these mechanisms is in the nature of the possible Os(IV) key intermediates (KI). According to calculations, the intermediate is an OsIVCl5 complex of square pyramidal coordination geometry. The calculations do not give an opportunity to make an unambiguous choice between the triplet and quintet multiplicities of OsIVCl5. The calculated CASSCF/IMCP-SR1 transition energies for 5OsIVCl5 are lower than for 3OsIVCl5, while the calculated XMC-QDPT2/SBKJC spectra for the triplet state are in better agreement with the experimental absorption spectrum of the KI than for the quintet state.

Graphical abstract: Short-lived intermediates in photochemistry of an OsCl62− complex in aqueous solutions

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Publication details

The article was received on 10 Aug 2017, accepted on 01 Nov 2017 and first published on 02 Nov 2017


Article type: Paper
DOI: 10.1039/C7PP00299H
Citation: Photochem. Photobiol. Sci., 2018,17, 18-26
  • Open access: Creative Commons BY license
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    Short-lived intermediates in photochemistry of an OsCl62− complex in aqueous solutions

    M. V. Rogozina, V. V. Yudanov, R. G. Fedunov, I. P. Pozdnyakov, A. A. Melnikov, S. V. Chekalin and E. M. Glebov, Photochem. Photobiol. Sci., 2018, 17, 18
    DOI: 10.1039/C7PP00299H

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