Related Experiment Video
Updated: Jan 15, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Cytotoxic evaluation of dinuclear ruthenium p-cymene complex with the mononuclear counterpart: A structural
Anushka Verma1, Arabinda Muley1, Nafeesa Shahnaz2
1Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy, 502284 Elangana, India.
Abstract:
Human cancer is a complex and highly diverse disease based on multiple aetiologies, multiple cell targets and distinct developmental stages. Notably, ruthenium-based complexes have emerged as good alternatives to traditional platinum-based drugs for cancer therapy. In this context, a mono and a dinuclear novel ruthenium(II) p-cymene complex formulated as [(p-cymene)Ru(L)Cl](PF6) and [(p-cymene)2Ru2(L)Cl2](PF6)2 (L = N-(3,5-di(pyridin-2-yl)-4H-1,2,4-triazol-4-yl)-1,8-naphthalimide) respectively have been synthesized and characterized by different spectroscopic techniques i.e., UV-vis, 1H NMR, 13C NMR, COSY, FT-IR and mass spectrometry. The molecular structures for both complexes were determined by single-crystal X-ray diffraction. Their cyclic voltammetry has also been performed. In addition, cytotoxicity against cancer cell growth was examined using two human breast cancer cell lines, MDA-MB-231 and MCF-7. Both the complex exhibited strong DNA cleavage activity in vitro. However, cytotoxicity, cell viability and ROS production ability of [(p-cymene)2Ru2(L)Cl2](PF6)2 was found to be comparatively higher against triple negative breast cancer cell line MDA-MB-231.
More Related Videos
Related Concept Videos
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group...
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,...
Coordination Number and Geometry
Structural Isomerism
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
Thermal and Photochemical Electrocyclic Reactions: Overview
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...

