1. Below are the spectra of three metal complexes, [Co(NNN)2]2+, [Cu(NNN)2]2+, and [Ni(NNN)2]2+, where NNN is the tridentate ligand shown below.
NNN =
Find 10Dq, B, and the nephelauxetic parameter β for each complex (if possible) and assign the transitions for this complex assuming a pseudo-Oh geometry. Based on your values, which N atoms coordinate to the metal ions? Justify your conclusion.