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

Svetlana G. Matveeva, Anton A. Shushakov, Ivan P. Pozdnyakov, Vjacheslav P. Grivin, Victor F. Plyusnin, Danila B. Vasilchenko, Andrei V. Zadesenets, Alexei A. Melnikov, Sergei V. Chekalin, Evgeni M. Glebov

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

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 1a → 2a 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.

Original languageEnglish
Pages (from-to)1222-1228
Number of pages7
JournalPhotochemical and Photobiological Sciences
Volume17
Issue number9
DOIs
Publication statusPublished - Sep 2018

Keywords

  • PUMP-PROBE SPECTROSCOPY
  • AQUEOUS-SOLUTIONS
  • PHOTODYNAMIC THERAPY
  • EXCITED-STATES
  • DYNAMICS
  • SULFOXIDE)RUTHENIUM(II)
  • RUTHENIUM(III)
  • PHOTOPHYSICS
  • CR(ACAC)(3)

Fingerprint Dive into the research topics of 'A: Cis, fac -[RuCl<sub>2</sub>(DMSO)<sub>3</sub>(H<sub>2</sub>O)] complex exhibits ultrafast photochemical aquation/rearrangement'. Together they form a unique fingerprint.

Cite this