Oxidation of [Ru(NH(2)Q)(3)](2+) (NH(2)Q = 8-aminoquinoline) results in intermolecular coupling of 8-aminoquinoline ligands to yield an electroactive polymer. Oxidative polymerization is not observed for [Ru(bpy)(2)(NH(2)Q)](2+) (bpy = 2,2'-bipyridine), where only one 8-aminoquinoline ligand is present.
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http://dx.doi.org/10.1039/b902513h | DOI Listing |
Inorg Chem
November 2024
São Carlos Institute of Chemistry, University of São Paulo, São Carlos 13560-970, SP,Brazil.
Ruthenium(II) tetraamine nitrosyl complexes with N-heterocyclic ligands are known for their potential as nitric oxide (NO) donors, capable of releasing NO through either direct photodissociation or one-electron reduction of the Ru(II)NO center. This study delivers a novel insight into the one-electron reduction mechanism for the model complex -[Ru(NO)(NH)(py)] (RuNOpy, py = pyridine) in phosphate buffer solution (pH 7.4).
View Article and Find Full Text PDFChemMedChem
October 2024
Division of Pharmaceutical and Drug Industries, Department of the Chemistry of Natural and Microbial Products, National Research Centre, El Buhouth Street, Dokki, Cairo, 12622, Egypt.
Ruthenium complexes incorporating 2,2' : 6',2''-terpyridine ligands have emerged as promising candidates due to their versatile biological activities including DNA-binding, anti-inflammatory, antimicrobial, and anticancer properties. In this study, three new 4'-functionalized bis(terpyridine) Ru(II) complexes were synthesized. These complexes feature one ligand as 4-(2,2' : 6',2''-terpyridine-4'-yl) benzoic acid and the second ligand as either 4'-(2-thienyl)-2,2' : 6',2''-terpyridine, 4'-(3,4-dimethoxyphenyl)-2,2' : 6',2''-terpyridine, or 4'-(4-dimethylaminophenyl)-2,2' : 6',2''-terpyridine.
View Article and Find Full Text PDFRSC Adv
August 2024
Institute of Inorganic Chemistry, Leipzig University Johannisallee 29 D-04103 Leipzig Germany
Homotrinuclear complexes of the -symmetric tris(ferrocenyl)arene-based tris-phosphanes 1a-d with ruthenium(ii) ([1a-d(Ru)]) and rhodium(i) ([1a-d(Rh)]) were prepared and fully characterised. Complexes [1a-d(Ru)] and [1a-d(Rh)] are electrochemically active. The nature of the arene core in 1a-d ranging from benzene, 1,3,5-trifluorobenzene and mesitylene to -triazine allows to fine-tune the exact oxidation potentials for tailoring the electrochemical response.
View Article and Find Full Text PDFDalton Trans
January 2024
ENS de Lyon, UMR 5182, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, 69342 Lyon, France.
Ru(II) complexes with polypyridyl ligands (2,2'-bipyridine = bpy, 1,10-phenanthroline = phen) play a central role in the development of photocatalytic organic reactions. In this work, we synthesized four mixed-ligand [Ru(phen)(bpy)]-type complexes (Ru-Pcat-A) bearing two phosphonate substituents P(O)(OH)(OR) (R = H, Et) attached to the phen core at positions 3,8 (Ru-3,8PH and Ru-3,8PHEt) and 4,7 (Ru-4,7PH and Ru-4,7PHEt) of the heterocycle in high yields (87-99%) and characterized them using spectral methods. Single crystal X-ray diffraction was employed to determine the coordination mode of the ditopic phen ligand in Ru-4,7PH.
View Article and Find Full Text PDFLangmuir
August 2023
Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747 Groningen, AG, The Netherlands.
Electrochemistry and electrochemical reactions are increasingly important in the transition to a sustainable chemical industry. The electron transfer that drives such reactions takes place within nanometers of the electrode surface, and follow-up chemical reactions take place within the diffusion layer. Hence, understanding electrochemical reactions requires time-, potential-, and spatially resolved analysis.
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