Related Experiment Video
Updated: Jan 12, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Syntheses, Reactivity, X-ray Structures, and Antioxidant Properties of Ruthenium(II) Complexes with
Chong Chen1, Meng-Ting Chen1, Song Pan1
1Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma'anshan, Anhui 243002, P. R. China.
Abstract:
Reaction of Lawesson's reagent analogue precursors with dry potassium fluoride as the fluorinating agent in the presence of tetraphenylphosphonium bromide gave three aryl/ferrocenyl-fluorodithiophosphate ligands [PPh4][(p-methoxy-C6H4)FPS2] (L1), [PPh4][(p-ethoxy-C6H4)FPS2] (L2), and [PPh4][(Fc)FPS2] (L3) (Fc = Fe(η5-C5H4)(η5-C5H5)). The treatment of [(η6-p-cymene)RuCl2]2 (η6-p-cymene = 1-methyl-4-iso-propyl-benzene) with equivalent L1 and L3 in dichloromethane afforded a binuclear ruthenium(II) complex [(η6-p-cymene)Ru{κ2-S,μ-S'-(p-methoxy-C6H4)FPS2}]2 (1) and a mononuclear ruthenium(II) complex [(η6-p-cymene)ClRu{κ2-S,S'-(Fc)FPS2}] (2), respectively. Interaction of cis-[(phen)2RuCl2] (phen = o-phenanthroline) with L1 and L2 in methanol at reflux gave mononuclear ruthenium(II) complexes trans-[(phen)2Ru{(κ1-S-(p-methoxy-C6H4)FPS2)}2] (3) and trans-[(phen)2Ru{(κ1-S-(p-ethoxy-C6H4)FPS2)}2] (4), respectively. Precursors pre-L1-pre-L3, ligands L1-L3, and ruthenium(II) complexes 1-4 were well-characterized by IR, NMR, UV-vis, and TOF-MS spectroscopies. The structures of precursor pre-L3, ligands L1 and L3, and ruthenium(II) complexes 1-4 have been established by single-crystal X-ray crystallography. Moreover, the antioxidant properties of ruthenium(II) complexes 1-4 were evaluated using DPPH free radical and ABTS cation radical-scavenging activities in vitro.
More Related Videos
Related Concept Videos
Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Crystal Field Theory - Octahedral Complexes
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Valence Bond Theory
ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH3

![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)