A cis, fac-[RuCl2(DMSO)3(H2O)] complex exhibits ultrafast photochemical aquation/rearrangement. Issue 9 (2nd August 2018)

• Record Type: Journal Article
• Authors: Matveeva, Svetlana G.; Shushakov, Anton A.; Pozdnyakov, Ivan P.; Grivin, Vjacheslav P.; Plyusnin, Victor F.; Vasilchenko, Danila B.; Zadesenets, Andrei V.; Melnikov, Alexei A.; Chekalin, Sergei V.; Glebov, Evgeni M.
• Is Part Of: Photochemical & photobiological sciences. Volume 17:Issue 9(2018)
• Page Start: 1222
• Page End: 1228
• Publication Date: 2018-08-02
• Subjects: Photochemistry -- Periodicals; Photobiology -- Periodicals; 541.35
• DOI: 10.1039/c8pp00232k
• Languages: English
• ISSNs: 1474-905X

Abstract

Abstract : Primary photophysical and photochemical processes for the cis, fac -[RuCl2 (DMSO)3 (H2 O)] complex (1a ) were studied. Abstract : It is known that both cis, fac -[RuCl2 (DMSO)3 (H2 O)] (1a ) and trans, cis, cis -[RuCl2 (DMSO)2 (H2 O)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 of1a photochemistry is its transformation to2a occurring with a rather high quantum yield, 0.64 ± 0.17. The mechanism of the1a →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.