Abstract
The coordinative bonding interaction involving glycine ligand with three randomly, selected transition metals ions chromium, nickel and titanium is analysed using standard perturbation principles. The experimental data is collected by accurately measuring the spectral shifts or relative strengths of perturbations from corresponding electronic spectra of the solution complexes and through supportive DFT calculations using some innovative approaches. The observed spectral shifts are interpreted as glycine ligand perturbations on the appropriate excited electronic state of the transition metal ion following coordinative bonding interaction. The neighbouring excited but unperturbed states including the ground state facilitate the redistribution of the perturbation energy within the manifold of the transition metal ion electronic energy states. The information allows for a detailed new insight into the intrinsic mechanism of coordinative bonding interaction.
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