Synthesizing and Investigating Cobalt Complexes: UV-Vis and Structure-Property Relationships

Post-Lab Activity


The spectrochemical series is a way scientists rank ligands in terms of strength (ligand strength increases from right to left). A stronger ligand causes a larger Δ while a weaker ligand causes a smaller Δ.

Below is a template of a spectrochemical series that includes water:

16. Water is a special ligand as it has no π interactions with a metal; it only has σ interactions. Based on this, where would π-accepting ligands be placed?

17. Where would π-donating ligands be placed?

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