Evidence for a photoinduced isonitrosyl isomer in ruthenium dinitrosyl compounds
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چکیده
منابع مشابه
Photoinduced ligand isomerisation in a pyrazine-containing ruthenium polypyridyl complex.
Photochemically-induced ligand rearrangements for the N2 and N4 coordination isomers of the complex [Ru(bpy)(2)(Hpztr)](2+) and its deprotonated analogue [Ru(bpy)(2)(pztr)](+), where bpy is 2,2'-bipyridyl and Hpztr is pyrazine-1,2,4-triazole ligand, are reported. (1)H NMR spectroscopic and HPLC studies indicate that in acetone and acetonitrile the complexes are photostable when the triazole rin...
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Photoinduced electron transfer between ruthenium complexes and nucleotides or DNA
The quenching of the luminescence of Ru(TAP)++, Ru(HAT)z(bpyp+ (TAP = 1,4,5$-tetraazaphenanthrene; HAT = 1,4,5,8,9,12-hexaazatphenylene; bpy = 2,2'bipyridyl) and related oxidising complexes by DNA, polynucleotides, and purine nucleotides occurs by reductive electron transfer. Laser flash photolysis provides evidence for the formation of the reduced metal complex and the deprotonated nucleotide ...
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Under physiologically relevant conditions, cis-bis(2,2'-bipyridine)dichlororuthenium(II), [cis-Ru(2,2'-bipy)2Cl2] was observed to bind to folic acid via replacement of the two chloride ligands. This binding was shown to be pH dependent and afforded diastereomers, the structures of which were determined by 1- and 2D NMR spectroscopic techniques. We propose that when studying the cytotoxicity of ...
متن کاملPhotoinduced ligand release in a ruthenium(II)-cobalt(III) heterodinuclear system.
Two Ru(II)-Co(III) heterodinuclear complexes have been synthesised as model complexes for photoactivated cytotoxins. Photoinduced ligand release has been demonstrated and the rate shown to depend on dioxygen concentration. Emission lifetimes and quantum yields are reported. These results validate the concept and justify further work to synthesise systems containing cytotoxic ligands.
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ژورنال
عنوان ژورنال: CrystEngComm
سال: 2019
ISSN: 1466-8033
DOI: 10.1039/c9ce01119f