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Issue 9, 2018
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A cis,fac-[RuCl2(DMSO)3(H2O)] complex exhibits ultrafast photochemical aquation/rearrangement

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Abstract

It is known that both cis,fac-[RuCl2(DMSO)3(H2O)] (1a) and trans,cis,cis-[RuCl2(DMSO)2(H2O)2] (2a) complexes, which are formed on the dissolution of trans and cis-isomers of [RuCl2(DMSO)4] in water, demonstrate light-induced anticancer activity. The first stage of 1a photochemistry is its transformation to 2a occurring with a rather high quantum yield, 0.64 ± 0.17. The mechanism of the 1a2a phototransformation was studied by means of nanosecond laser flash photolysis and ultrafast pump–probe spectroscopy. The reaction occurs in the picosecond time range via the formation and decay of two successive intermediates interpreted as Ru(II) complexes with different sets of ligands. A tentative mechanism of phototransformation is proposed.

Graphical abstract: A cis,fac-[RuCl2(DMSO)3(H2O)] complex exhibits ultrafast photochemical aquation/rearrangement

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Publication details

The article was received on 06 Jun 2018, accepted on 23 Jul 2018 and first published on 30 Jul 2018


Article type: Paper
DOI: 10.1039/C8PP00232K
Citation: Photochem. Photobiol. Sci., 2018,17, 1222-1228
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    A cis,fac-[RuCl2(DMSO)3(H2O)] complex exhibits ultrafast photochemical aquation/rearrangement

    S. G. Matveeva, A. A. Shushakov, I. P. Pozdnyakov, V. P. Grivin, V. F. Plyusnin, D. B. Vasilchenko, A. V. Zadesenets, A. A. Melnikov, S. V. Chekalin and E. M. Glebov, Photochem. Photobiol. Sci., 2018, 17, 1222
    DOI: 10.1039/C8PP00232K

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