Related Experiment Video
Updated: Sep 27, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Aqua Ions. 1. The structures of the [Ru(OH(2))(6)](3+) and [V(OH(2))(6)](3+) cations in aqueous solution: an EPR and
Stefan Dolder1, David Spichiger, Philip L W Tregenna-Piggott
1Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3000, Bern 9, Switzerland.
Abstract:
Spectroscopic data are presented for the [V(OH(2))(6)](3+) and [Ru(OH(2))(6)](3+) cations, from which inferences are drawn regarding their structures in aqueous solution. EPR and absorption spectra of solutions and glasses are supplemented by spectra of the aqua ions in various crystalline environments, and the electronic and molecular structures inter-related through elementary angular overlap model calculations. It is concluded that in aqueous solution the [Ru(OH(2))(6)](3+) cation is localized in the all-horizontal D(3)(d)geometry, whereas the structure of the [V(OH(2))(6)](3+) cation is close to T(h) symmetry. These results are consistent with the most energetically favored geometries predicted by ab initio calculations.
More Related Videos
Related Concept Videos
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group with both...
Ionic Crystal Structures
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
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...
UV–Vis Spectroscopy: Molecular Electronic Transitions
Qualitative Analysis
For instance, group IV...
Valence Bond Theory

